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9 tháng 9 2021

1 have been trying - haven't succeed

2 has been running

3 haven't seen

4 have had

5 have been sleeping

6 has been resting - has had

7 has been waiting 

8 am visiting - have never been

9 have you learned

10 haven't come - am visiting

Ex1: chia đt trong ngoặc ở thì htht 1. She (be) ......... Here since Monday 2. Mike (live)........... In Hanoi for 4 years 3. I (not write) ............ To her 4. I (know) ........... Her for a long time 5. My father (work) ........... For that company for 2 years 6. They (play) ........ Football since 2 pm 7. My father (teach).......... For that shook 2 years? 8. I (not see) ........... Him yet Ex2: 1. She............. (wait) for two hours to see you 2....
Đọc tiếp

Ex1: chia đt trong ngoặc ở thì htht

1. She (be) ......... Here since Monday

2. Mike (live)........... In Hanoi for 4 years

3. I (not write) ............ To her

4. I (know) ........... Her for a long time

5. My father (work) ........... For that company for 2 years

6. They (play) ........ Football since 2 pm

7. My father (teach).......... For that shook 2 years?

8. I (not see) ........... Him yet

Ex2:

1. She............. (wait) for two hours to see you

2. She...............(be) to America

3. John...........(see) that film several times

4. They.............. (live) in this street for a long time

5. She.........(not speak) to me since last week

6. We............ (study) every lesson in the book, so far

Ex3: correct Ben's in present prefect

1. Laura never(win) a beauty contest

2. I(not listen) to the new Tom waits CD yet?

3. (you see) any good films recently

4. The population of India (increase) since 1992

5. You ever (write) a love letter for Valentine's Day?

6. You ever (meet) a famous person

7. We already (see) the film at home

8. My boy friend (give) up smoking for 2 months

9. You can have that newspaper. I ( finish) with it

10. You ever (eat) sushi?

11. She (not/come) here for a long time

12. I (work) here for three years

13. You ever (be) to new york?

14. You (not/do) you project yet, I suppose

15. I just (see) Andrew and he says he already (do) about half of the plan

4
4 tháng 8 2019

Ex1: chia đt trong ngoặc ở thì htht

1. She (has been) ......... Here since Monday

2. Mike (has lived)........... In Hanoi for 4 years

3. I (have not written) ............ To her

4. I (have known) ........... Her for a long time

5. My father (has worked) ........... For that company for 2 years

6. They (have played) ........ Football since 2 pm

7. My father (has taugh).......... For that shook 2 years?

8. I (have not seen) ........... Him yet

Ex2:

1. She............. (has been waiting) for two hours to see you

2. She...............(has been) to America

3. John...........(has seen) that film several times

4. They.............. (have lived) in this street for a long time

5. She.........(has not spoken) to me since last week

6. We............ (have studied) every lesson in the book, so far

Ex3: correct Ben's in present prefect

1. Laura has never(won) a beauty contest

2. Haven't I(listened) to the new Tom waits CD yet?

3. (you have seen) any good films recently

4. The population of India (has increased) since 1992

5. Have You ever (written) a love letter for Valentine's Day?

6.Have You ever (met) a famous person

7. We have already (seen) the film at home

8. My boy friend (has given) up smoking for 2 months

9. You can have that newspaper. I (have finished) with it

10.have You ever (eaten) sushi?

11. She (has not come) here for a long time

12. I (have worked) here for three years

13. Have You ever (been) to new york?

14. You (have not done) you project yet, I suppose

15. I have just (seen) Andrew and he says he have already (done) about half of the plan

4 tháng 8 2019

Ex1: chia đt trong ngoặc ở thì htht

1. She (be) ......has been... Here since Monday

2. Mike (live).....has lived...... In Hanoi for 4 years

3. I (not write) ....haven't written........ To her

4. I (know) ...have known........ Her for a long time

5. My father (work) .......has worked.... For that company for 2 years

6. They (play) ...have played..... Football since 2 pm

7. Has My father (teach)......taught .... For that shook 2 years?

8. I (not see) .....haven't seen...... Him yet

Ex2:

1. She.......has waited ...... (wait) for two hours to see you

2. She...........has been....(be) to America

3. John....has seen.......(see) that film several times

4. They.........have lived..... (live) in this street for a long time

5. She....hasn 't spoken.....(not speak) to me since last week

6. We.....have studied ....... (study) every lesson in the book, so far

Ex3: correct Ben's in present prefect

1. Laura has never(win) won a beauty contest

2. Have I(not listen) not listened to the new Tom waits CD yet?

3. (you see) Have you seen any good films recently

4. The population of India (increase) has increased since 1992

5. Have You ever (write) written a love letter for Valentine's Day?

6. Have You ever (meet) met a famous person ?

7. We have already (see) seen the film at home

8. My boy friend (give) has given up smoking for 2 months

9. You can have that newspaper. I ( finish) have finished with it

10. Have You ever (eat) eaten sushi?

11. She (not/come) has not come here for a long time

12. I (work) have worked here for three years

13.Have You ever (be) been to new york?

14. You (not/do) haven't done your project yet, I suppose

15. I have just (see) seen Andrew and he says he has already (do) done about half of the plan

6 tháng 7 2018

1. We (wait) for her for 30 minutes. 

- have been waiting

2. She (go) out since 5 a.m. 

- has been going out 

3. They (not eat) anything all the morning

- haven’t been eating

4.  The street is full of water because it (rain) for 3 hours.

- has been raining

5. She looks very exhausted because she (work) all night. 

- has been working

6. I (read) this book since last night. 

- have been reading

7. She (chat) with her friend all the day. 

- has been chatting

8. He (talk) on the phone for hours

- has been talking

9.  She (cycle) for 2 hours and she is very tired now. 

- has been cycling

10. We (not write) to each other for 6 months

- haven’t been writing


 

10 tháng 3 2019

1. have had                   

2. has been

3. have studied

4. have cleaned

5. has watched

6. hasn't rained

7. haven't seen

8. has worked

9. has never seen                    Học tốt nha!!!

10 tháng 3 2019

1. have had

2. has been

3. have studied

4. have cleaned

5. has watched

6. hasn't rained

7. haven't seen

8. has worked

9. has ever seen

Chia dạng đúng của động từ trong ngoặc ở thì hiện tại hoàn thành hoặc hiện tại hoàn thành tiếp diễn.1.  I                  (try) to learn English for years, but I                  (not succeed) yet.2.  Mary is ill because she                   (work) in the garden all day.3.  She                  (work) so hard this week that she                  (not have) time to go to the...
Đọc tiếp

Chia dạng đúng của động từ trong ngoặc ở thì hiện tại hoàn thành hoặc hiện tại hoàn thành tiếp diễn.

1.  I                  (try) to learn English for years, but I                  (not succeed) yet.

2.  Mary is ill because she                   (work) in the garden all day.

3.  She                  (work) so hard this week that she                  (not have) time to go to the movies.

4.  That book                  (lie) on the table for weeks. You                  (read) it yet?

5.  He                  (not be) here since Christmas. I wonder where he                   (live) since then.

6.  Jack                  (go) to Paris for a holiday. He never                  (be) there.

7.  You                  (sleep) so far? I                  (ring) the bell for the last twenty minutes.

8.  He                  (write) a novel for two years, but he                  (not finish) it yet.

9.  Mary                  (lose) her hat and she                  (look) for it until now.

10.  She (sleep)                   for 10 hours! You must wake her.

 

1
14 tháng 6 2021

1. have tried - haven't succeeded
2. has been working
3. has worked - hasn't had
4. has lied - Have you read
5. hasn't been -has lived
6. has gone - has never been
7. Have you slept - have rung
8. has written - hasn't finished
9. has lost - has been looking
10. has slept 

Chia động từ trong ngoặc ở thì HTHT.1. The bill isn’t right. They (make)………….. a mistake.2. Don’t you want to see this programme? It ………….(start).3. I (turn)……….. the heating on. It’ll soon get warm in here.4. ……..they (pay)…….. money for your mother yet?5. Someone (take)………………. my bicycle.6. Wait for few minutes, please! I (finish)……………. my dinner.7. ………you ever (eat)………….. Sushi?8. She (not/come)……………...
Đọc tiếp

Chia động từ trong ngoặc ở thì HTHT.

1. The bill isn’t right. They (make)………….. a mistake.

2. Don’t you want to see this programme? It ………….(start).

3. I (turn)……….. the heating on. It’ll soon get warm in here.

4. ……..they (pay)…….. money for your mother yet?

5. Someone (take)………………. my bicycle.

6. Wait for few minutes, please! I (finish)……………. my dinner.

7. ………you ever (eat)………….. Sushi?

8. She (not/come)…………… here for a long time.

9. I (work)………….. here for three years.

10. ………… you ever …………..(be) in New York?

11. You (not/do) ………….yor project yet, I suppose.

12. I (just/ see)………. Andrew and he says he ……..already (do)………. about half of the plan.

13. I ………..just (decide)……… to start working next week.

14. He (be)…………. at his computer for seven hours.

15. She (not/ have) ……………any fun a long time.

16. My father (not/ play)……….. any sport since last year.

17. I’d better have a shower. I (not/ have)………. one since Thursday.

18. I don’t live with my family now and we (not/ see)…………. each other for five years.

19. I…… just (realize)…………... that there are only four weeks to the end of term.

20. The train drivers (go)……… on strike and they stopped working at twelve o’clock.

21. How long…….. (you/ know)………. each other?

22. ……….(You/ take)………… many photographs?

23. (She/ eat)………………. at the Royal Hotel yet?

24. He (live) ………….here all his life..

25. Is this the second time he (lose)……………. his job?

26. How many bottles………… the milkman (leave) ………….? He (leave) ……….. six.

27. I (buy)…………. a new carpet. Come and look at it.

28. She (write)………….. three poems about her fatherland.

29. We (finish) ……………………three English courses.

30. School (not, start)……………..yet.

3
6 tháng 7 2018

1. have made/ 've made                                       

2. has started./ 's started.                                    

3. have turned/ 've turned                                    

4. Have they paid                                                       

5. has taken/ 's taken                                               

6. have finished/ 've finished                                  

7. Have...eaten                                                          

8. hasn't come                                                       

9. have worked/ 've worked                                         

10. Have....been                                                        

11. haven't done                                                     

12. have just seen/ 've just seen - has...done                

13. have...decided                                                     

14. has been/ 's been 

15. hasn't had 

 16. hasn't played

17. haven't had

 18. haven't seen

 19. have...realized/ 've ... realized

 20. have gone

28 tháng 9 2018

Chia động từ trong ngoặc ở thì HTHT.

1. The bill isn’t right. They (make)………have made….. a mistake.

2. Don’t you want to see this programme? It ………has started….(start).

3. I (turn)…have turned…….. the heating on. It’ll soon get warm in here.

4. …Have…..they (pay)……paid.. money for your mother yet?

5. Someone (take)………has taken………. my bicycle.

6. Wait for few minutes, please! I (finish)……have finished………. my dinner.

7. …Have…you ever (eat)…eaten……….. Sushi?

8. She (not/come)…hasn't come………… here for a long time.

9. I (work)…have worked……….. here for three years.

10. ………Have… you ever ……been……..(be) in New York?

1.“You’d better not lend that man any more money, Mary” said John. A. John advised Mary not to lend that man any more money. B. John advised Mary to lend that man any more money. C. John advised Mary not to borrow that man any more money. D. John advised Mary to borrow that man any more money. 2.Let’s put garbage bins around the school yard. A. She told me put garbage bins around the school yard. B. Garbage bins should put around the school yard. C. Garbage bins are put around...
Đọc tiếp

1.“You’d better not lend that man any more money, Mary” said John.

A. John advised Mary not to lend that man any more money.

B. John advised Mary to lend that man any more money.

C. John advised Mary not to borrow that man any more money.

D. John advised Mary to borrow that man any more money.

2.Let’s put garbage bins around the school yard.

A. She told me put garbage bins around the school yard. B. Garbage bins should put around the school yard.

C. Garbage bins are put around the school yard. D. I suggest putting garbage bins around the school yard.

3.“Would you like to come to my house for lunch?” she said to me.

A. She asked me to come to her house for lunch. B. She invited me to come to her house for lunch.

C. She told me to come to my house for lunch. D. She invited me to come to my house for lunch.

4. She started learning English two years ago.

A. She has not learnt English before. B. She has started learning English for two years.

C. She has learnt English for two years. D. She has learnt English since two years.

5.My uncle gave up smoking two months ago.

A. My uncle hasn’t smoked for two months. B. The last time my uncle has smoked was two months ago.

C. My uncle hasn’t smoked two months ago. D. My uncle last gave up smoking two months ago.

6. They have worked for this company for five years.

A. They began working for this company five years ago.

B. They haven’t worked for this company for five years.

C. It is five years since they have worked for this company

D. It is the first time they have worked for this company.

7. He last visited the Temple of Literature three months ago.

A. He hasn’t visited the Temple of Literature for three months.

B. He hasn’t visited the Temple of Literature since three months.

C. He didn’t visit the Temple of Literature for three months.

D. His visit to the Temple of Literature lasted three months.

8. Nobody has ever treated me with such kindness.

A. I have never been treated with such kindness. B. I haven’t treated with such kindness.

C. Have never I treated with such kindness. D. I have ever been treated with such kindness.

9. He hasn’t visited his home village for over two years.

A. The last time he visited his home village was over two years ago.

B. He will visit his home village in over two years.

C. His visit to his home village lasted over two years.

D. Over two years ago, he often visited his home village.

10.We haven’t visited our grandparents for two months

A. we visited our grandparents since two months.

B. The last time we visited our grandparents was two months ago.

C. The last time we visited our grandparents was for two months.

1
4 tháng 3 2020

1.“You’d better not lend that man any more money, Mary” said John.

A. John advised Mary not to lend that man any more money.

B. John advised Mary to lend that man any more money.

C. John advised Mary not to borrow that man any more money.

D. John advised Mary to borrow that man any more money.

2.Let’s put garbage bins around the school yard.

A. She told me put garbage bins around the school yard. B. Garbage bins should put around the school yard.

C. Garbage bins are put around the school yard. D. I suggest putting garbage bins around the school yard.

3.“Would you like to come to my house for lunch?” she said to me.

A. She asked me to come to her house for lunch. B. She invited me to come to her house for lunch.

C. She told me to come to my house for lunch. D. She invited me to come to my house for lunch.

4. She started learning English two years ago.

A. She has not learnt English before. B. She has started learning English for two years.

C. She has learnt English for two years. D. She has learnt English since two years.

5.My uncle gave up smoking two months ago.

A. My uncle hasn’t smoked for two months. B. The last time my uncle has smoked was two months ago.

C. My uncle hasn’t smoked two months ago. D. My uncle last gave up smoking two months ago.

6. They have worked for this company for five years.

A. They began working for this company five years ago.

B. They haven’t worked for this company for five years.

C. It is five years since they have worked for this company

D. It is the first time they have worked for this company.

7. He last visited the Temple of Literature three months ago.

A. He hasn’t visited the Temple of Literature for three months.

B. He hasn’t visited the Temple of Literature since three months.

C. He didn’t visit the Temple of Literature for three months.

D. His visit to the Temple of Literature lasted three months.

8. Nobody has ever treated me with such kindness.

A. I have never been treated with such kindness. B. I haven’t treated with such kindness.

C. Have never I treated with such kindness. D. I have ever been treated with such kindness.

9. He hasn’t visited his home village for over two years.

A. The last time he visited his home village was over two years ago.

B. He will visit his home village in over two years.

C. His visit to his home village lasted over two years.

D. Over two years ago, he often visited his home village.

10.We haven’t visited our grandparents for two months

A. we visited our grandparents since two months.

B. The last time we visited our grandparents was two months ago.

C. The last time we visited our grandparents was for two months.

I. use the correct verbs form 1. There (be) an accident at this corner yesterday. ........................................................................................... 2. an is living in Hanoi with her grandparents . She (live) here for two years ........................................................................................................... 3. The room looks very bright . You ( just wash)...
Đọc tiếp

I. use the correct verbs form
1. There (be) an accident at this corner yesterday.
...........................................................................................
2. an is living in Hanoi with her grandparents . She (live) here for two years
...........................................................................................................
3. The room looks very bright . You ( just wash) it?
.........................................................................................................
4. I ( not see) him since I (be) abroad
......................................................................................................
5. She (visit) Europe many times since she ( come) there three months ago
.....................................................................................................
6. They ( work ) for my father for 4 years
......................................................................................................
7. She (live) in Paris since 1991
......................................................................................................
8. I ( not see) Tom since Tuesday
.........................................................................................................
9. She ( have) the party since 5 o'clock
............................................................................................................
10. She ( be) a teacher for twenty years
...........................................................................................................
11. She (feed) the cat yet? yes , she ( feed) it half an hour ago
............................................................................................................
12. Would you like some coffee? I ( just make) some
.......................................................................................................
13. He (not see) her since he ( be) on holiday in Ha Long Bay
.........................................................................................................
14. I ( work ) with him since1970
.........................................................................................................
15. You ( meet) him since we (say) good bye ?
.........................................................................................................
16. We (not get) in touch with him for years
...........................................................................................................
17. This is the first time I ( drive ) a car
...........................................................................................................
18. We had to ( cancel) our picnic because the weather ( be) bad yesterday
........................................................................................................
19.he ( nots have ) time to do anything since Monday
...................................................................................................

2
25 tháng 9 2017

I. use the correct verbs form
1. There (be) an accident at this corner yesterday.
.................WAS..........................................................................
2. an is living in Hanoi with her grandparents . She (live) here for two years
....................HAS LIVED.......................................................................................
3. The room looks very bright . You ( just wash) it?
..................................HAVE YOU JUST WASHED.......................................................................
4. I ( not see) him since I (be) abroad
................................HAVEN'T SEEN / WAS......................................................................
5. She (visit) Europe many times since she ( come) there three months ago
........................HAS VISITED / CAME.............................................................................
6. They ( work ) for my father for 4 years
...........................................HAVE WORKED...........................................................
7. She (live) in Paris since 1991
................................HAS LIVED......................................................................
8. I ( not see) Tom since Tuesday
.............................HAVENT'T SEEN............................................................................
9. She ( have) the party since 5 o'clock
.....................HAS HAD.......................................................................................
10. She ( be) a teacher for twenty years
...........................HAS BEEN................................................................................
11. She (feed) the cat yet? yes , she ( feed) it half an hour ago
.............................HAS SHE FED / FED...............................................................................
12. Would you like some coffee? I ( just make) some
............................HAVE JUST MADE...........................................................................
13. He (not see) her since he ( be) on holiday in Ha Long Bay
.....................HAVEN'T SEEN / WAS....................................................................................
14. I ( work ) with him since1970
......................HAVE WORKED...................................................................................
15. You ( meet) him since we (say) good bye ?
.................HAVE YOU MET / SAID........................................................................................
16. We (not get) in touch with him for years
....................HAVEN'T GOT.......................................................................................
17. This is the first time I ( drive ) a car
.......................HAVE DRIVEN....................................................................................
18. We had to ( cancel) our picnic because the weather ( be) bad yesterday
.......................CANCEL / WAS.................................................................................
19.he ( nots have ) time to do anything since Monday
......................HASN'T HAD.............................................................................

25 tháng 9 2017

1. was

2. has lived

3. Have you just washed

4. haven't seen/was

5. has visited/came

6. have worked

8. haven't seen

7. has lived

9. has had

10. have been

11. Has she fed/fed

12. have just made

13. hasn't seen/was

14. have worked.

15. Have you met/ said

16. haven't got

17. have ever drived

18. cancel/was

19. hasn't had

1).................................you (have)........................................dinner yet? 2)So far, I (not,see)..........................................................a camel. 3)In France birds (fly)...........................................to the South before winter comes. 4)He (sit)...................on a chair at 9:00 last night. 5)I (know)...............................him for a very long time. 6)My parents (come).................................to stay with me next...
Đọc tiếp

1).................................you (have)........................................dinner yet?

2)So far, I (not,see)..........................................................a camel.

3)In France birds (fly)...........................................to the South before winter comes.

4)He (sit)...................on a chair at 9:00 last night.

5)I (know)...............................him for a very long time.

6)My parents (come).................................to stay with me next month.

7)The war began while he (live)...................in France.

8)They (just leave).............................................here.

9)He (turn).............................................on the fan now.

10)There (be)..................................no intelligent life on the moon.

11)He thankedd me for what I (do).........................................

12)My bicyle isn't here any more. Somebody (take) ......................................................it.

13)I (not,see).............................................her for three years. I wonder where she is.

14)The performance (begin)..................at 7 o'clock and (last).............for three hours. We all (enjoy)......it.

1
19 tháng 5 2018

1) Have you (have) had dinner yet?

2)So far, I (not, see) haven't seen a camel.

3)In France birds (fly) fly to the South before winter comes.

4)He (sit) sit on a chair at 9:00 last night.

5)I (know) have known him for a very long time.

6)My parents (come) will come to stay with me next month.

7)The war began while he (live) was living in France.

8)They (just leave) have just left here.

9)He (turn) is turning on the fan now.

10)There (be) is no intelligent life on the moon.

11)He thanked me for what I (do) am doing

12)My bicycle isn't here any more. Somebody (take) takes it.

13)I (not, see ) haven't seen her for three years. I wonder where she is.

14)The performance (begin) begins at 7 o'clock and (last) lasts for three hours. We all (enjoy) enjoyed it.

19 tháng 5 2018

cảm ơn

Ex1. Put the verb in brackets in the present perfect or the simple past tense 1, we (never watch)........................ that TV programme 2, we (watch ).............. a good progamme on TV last night 3, he (read)................. that novel many timer before 4, he (read)................. that novel again during my last vacation 5, i (have) ................... a little trouble with my car last week 6, however i (have).................. no trouble with my car since then 7, i (not...
Đọc tiếp

Ex1. Put the verb in brackets in the present perfect or the simple past tense

1, we (never watch)........................ that TV programme

2, we (watch ).............. a good progamme on TV last night

3, he (read)................. that novel many timer before

4, he (read)................. that novel again during my last vacation

5, i (have) ................... a little trouble with my car last week

6, however i (have).................. no trouble with my car since then

7, i (not see).............John for a long time . I (see)............. him 3 weeks ago

8, the school bell (ring )............... We must go now

9, i (meet ).............mary last nigh . She (become)................ a very big girl

10, he is very thirsty .he ( not drink)............ since this morning

11, it is very hot . Summer (come)...........

12,they (study)............... at this school for 7 years now

13, they (begin)................ to study at this school 7 years ago

14, since when ( you know)..................her?

15, how long ago (he start)................... to learn french?

16, she (lose) ............. her handbag on the train yesteday mỏning

17, my morther (be)................ in hospital for a long time and she cannot go home yet

18, his dog (just run)................ out of the garden

19, mr brown (travel)................... by air several times in the past

20, he (travel)....................... to mexico by air last summer

5
9 tháng 7 2019

1, we have never watched that TV programme

2, we watched a good progamme on TV last night

3, he has read that novel many timer before

4, he read that novel again during my last vacation

5, i had a little trouble with my car last week

6, however i haven't had no trouble with my car since then

7, i haven't seen John for a long time . I saw him 3 weeks ago

8, the school bell rang We must go now

9, i met mary last night . She has become a very big girl

10, he is very thirsty .he hasn't drunk since this morning

11, it is very hot . Summer has come.

12,they have studied at this school for 7 years now

13, they began to study at this school 7 years ago

14, since when have you known her?

15, how long ago did he start to learn french?

16, she lost her handbag on the train yesteday mỏning

17, my mother has been in hospital for a long time and she cannot go home yet

18, his dog has just ran out of the garden

19, mr brown has travelled by air several times in the past

20, he travelled to mexico by air last summer

9 tháng 7 2019

Ex1. Put the verb in brackets in the present perfect or the simple past tense

1, we (never watch)........have never watched................ that TV programme

2, we (watch )......watched........ a good progamme on TV last night

3, he (read)........has read......... that novel many timer before

4, he (read)........read......... that novel again during my last vacation

5, i (have) ...........had........ a little trouble with my car last week

6, however i (have).......have had........... no trouble with my car since then

7, i (not see)......haven't seen.......John for a long time . I (see).......saw...... him 3 weeks ago

8, the school bell (ring )........is ringing....... We must go now

9, i (meet )......met.......mary last nigh . She (become)......has became.......... a very big girl

10, he is very thirsty .he ( not drink)...hasn't drunk......... since this morning

11, it is very hot . Summer (come)......is coming.....

12,they (study).......have been studying........ at this school for 7 years now

13, they (begin).....began........... to study at this school 7 years ago

14, since when ( you know)..........have you known........her?

15, how long ago (he start)........did he start........... to learn french?

16, she (lose) ...lost.......... her handbag on the train yesteday mỏning

17, my morther (be).......has been......... in hospital for a long time and she cannot go home yet

18, his dog (just run)...........has just run..... out of the garden

19, mr brown (travel)..........travelled......... by air several times in the past

20, he (travel)................travelled............ to mexico by air last summer