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I. Use the correct verbs form :
1. He wish he (be) were a doctor
2. I wish they (be)would be here tomorrow
3. They wish they (have) had a new house
4. I ( not meet ) didn't meet him last week
5. He wishes you ( help) would help him
6. I wish that I ( know) knew how to mend this shirt
7. What did you (do) do yesterday morning ?
8. Did They ( go)go to the party last Sunday?
9. Mr.Ba (teach)taught French two years ago
10. We last ( meet) met our uncle last week
11. When I was young . I (play) played badminton for my local team.
12. He (be) was at school yesterday afternoon
13. There (be) were only a few people at the party last night
14, It's ages since I last ( see) saw a comedy film on television
15. Where ( be)were your parents being at 7pm last night?
16. My younger sister ( not wear) doesn't wearr T - shist when she went to school
17. Tony ( stay) stayed at home last night .He ( not go out) didn't go out.
18.Five years ago, he ( live)lived in the country with his parents
19. My mother and my brother (be)were in America last year
20. I ( not be) at Mary's party last night , but my friends (be)
21.Did You ( go ) go ou last night ? Yes . I (go )went to the cinema but I (not enjoy)didn't enjoy the movie much
22. He (be ) was sick and he (have)had to stay in bed all day yesterday
23. Many years ago , most people in Viet Nam ( not have)didn't have TV sets
24. When they ( be)were young , they ( leave)left their family and ( go)went to HCM city
25. When I( be)was a child , I ( can/go) (swim) could go swimming
26. Lan ( not listen)didn't listen to music last night
27. I ( tidy)tidied my desk yesterday
28. We ( buy)bought this picture a long time ago
29. I wish I ( can remember)could remember her name
30. Her granmother last ( make)made a dress years ago
Give the correct form of the following verbs:
1. I___go______(go) to school by bicycle every day.
2. When I(come)____came_____ home from work, my mother was cooking dinner.
3.The children ( play)____are playing_____________football at the moment.
4. If you (study )__study_______harder, you will pass the exam.
5.I wish he (not leave) _____wasn't leave____________ here
6.He (live) ____has lived______________in Australia for 10 years.
7.Ba enjoys (play)____playing_____________ football in the morning.
8. My house ( build)_____had built_____________ in 2004.
9. If the weather gets worse, we (not go) _____won't go_________ to the beach.
10.I wish I (live) ______lived__________ near my school.
11. My other usually (go) ___goes____ to school by bike every day.
12. Last night, my father ( watch) ___watched___________ TV
13.I wish I ( know) ___knew___________her address
14. My father enjoys (watch) _____watching__________ television in the evenings.
15.I wish I ( be ) _____were___________ taller.
16. When I (come) ___came_______ home from work yesterday, my mother was cooking dinner.
17.My house __was built______ (build) yesterday.
18. We (not see) __haven't saw______each other since Monday.
19. If the weather is fine, we (go) ___will go_____ for a picnic.
20. She asked me if I ( like ) __liked______ pop music.
21. Ba hates (watch) __watching______ the advertisements on TV.
22. Mrs. Nga enjoys (listen) ____listening______________ to music in her free time.
23. If Mai doesn’t work hard, she (not fail) ______will fail_____ the exam.
24. We (not meet) ____haven't met____________ her since we lived here.
25. I (visit) ___have visited_____________ Hue last week
26. I don’ know many English words. I wish I (know) __knew_____more English words.
27. Tuan and Huong (not/go) ___were not going___________ to the cinema last night.
28. My brother used to ( go ) ___going___________ to work by motoike. Now he cycles.
29. Last night we (go) __went____________ to Lan’s birthday party.
30.Men used ( be ) _______to being_____________ the bread winner of the family.
1. They(just decide)...........have just decided..........that they (undertake)..........would undertake..........the job.
2. We (go)...........went...........to the theatre last night.
3. He ussally(write)..............writes...........in green ink.
4. She(play).........was playing ........the piano when our guets (arrive)..........arrived..........last night.
5. We (do).......are doing.......an English exercise at the moment.
6. She (just come).........has just come........in and (see).........will se.......you in 5 minutes.
7. I (come).............will come..............as soon as my work is finished. (You/be)..........Will you be............ready?
8. Where(you go)..........did you go.........for your holiday last years?
9.I (not leave).........haven't left..........Paris since we (go)........went.........to Dieppe three years go.
10. My mother (come) _____is coming_____ to stay with us next weekend.
11 We (meet) _____met_____ only yesterday and (already decide) _____have already decided_____ to get married.
12 I (never see) _____have never seen_____ snow.
13. Violets (bloom) _____bloom_____ in spring.
14. We (not live) _____haven't lived______ in England for the last two months.
15. I (lose) ____have lost____ my keys; I cannot remember where I last (see) ___saw___ them.
16. He (not arrive)...........hadn't arrived......... when I (Write).........wrote..........my last letter to you
17 Whenever you (go) _____go____ to town nowadays, you (spend) ____spend_____ a lot of money.
18. I(never forget)...........will never forget..........what you (just tell)...........has just told.........me.
20./ When I last (stay) ______stayed_____ in Cairo, I (ride) _____rode_____ to the Pyramids on a camel that my friend (borrow) ______had borrowed______ the day before.
21./ I (finish) ______will finish_____ the book before my next birthday.
23/ He (walk) _____was walking_____ very quickly when I (meet) _____met_____ him yesterday.
24/ We (meet) _____will meet____ you tomorrow after you (finish) _____have finished_____ your work.
1. They(just decide)...........have just decided..........that they (undertake)..........would undertake..........the job.
2. We (go)...........went...........to the theatre last night.
3. He ussally(write)..............writes...........in green ink.
4. She(play).........was playing ........the piano when our guets (arrive)..........arrived..........last night.
5. We (do).......are doing.......an English exercise at the moment.
6. She (just come).........has just come........in and (see).........will se.......you in 5 minutes.
7. I (come).............will come..............as soon as my work is finished. (You/be)..........Will you be............ready?
8. Where(you go)..........did you go.........for your holiday last years?
9.I (not leave).........haven't left..........Paris since we (go)........went.........to Dieppe three years go.
10. My mother (come) _____is coming_____ to stay with us next weekend.
11 We (meet) _____met_____ only yesterday and (already decide) _____have already decided_____ to get married.
12 I (never see) _____have never seen_____ snow.
13. Violets (bloom) _____bloom_____ in spring.
14. We (not live) _____haven't lived______ in England for the last two months.
15. I (lose) ____have lost____ my keys; I cannot remember where I last (see) ___saw___ them.
16. He (not arrive)...........hadn't arrived......... when I (Write).........wrote..........my last letter to you
17 Whenever you (go) _____go____ to town nowadays, you (spend) ____spend_____ a lot of money.
18. I(never forget)...........will never forget..........what you (just tell)...........has just told.........me.
20./ When I last (stay) ______stayed_____ in Cairo, I (ride) _____rode_____ to the Pyramids on a camel that my friend (borrow) ______had borrowed______ the day before.
21./ I (finish) ______will finish_____ the book before my next birthday.
23/ He (walk) _____was walking_____ very quickly when I (meet) _____met_____ him yesterday.
24/ We (meet) _____will meet____ you tomorrow after you (finish) _____have finished_____ your work.
EXERCISES
Exercise 1 – Put the verbs in brackets in the correct verb tense form.
1. Please don’t make so much noise. I (study) ...am studying...
2. My father usually (have) ..has.... tea for breakfast.
3. What ....was.. you (do) ..doing.... at this time yesterday ?
4. I (watch) ..watched.... that film with my sister last week.
5. We (study) ..have studied.... almost every lesson in this book so far.
6. He (win) ..won.... the gold medal in 2009.
7. We (not see) ...haven't seen.. your father for ages.
8. He (type) ...had typed... ten letters by lunchtime yesterday.
9. All of you (take) .are going to take..... the graduation examination in two months’ time.
10. By the end of this year, I (work) ..have been working.... here for 18 years.
11. He (see) ....saw.. her while he (walk) ...walked... down the street.
12. I thought they (wait) ...... for us for half an hour.
13. After he (do) ..had done.... his homework, he went to the cinema.
14. We (not see) ..haven't seen.... her since she (leave) ..left.... school.
15. When I (be) .was..... a boy, I often (go) ...went... fishing with my teacher.
16. When I (leave) .left..... my office last night, it (still..
Exercise 2 – Rewrite each of the following sentences in such a way that it has a similar meaning to the original one.
1. I have never read this kind of book before.
- It is the first time ...I have read this kind of book...
2. I have never read such an interesting novel.
- This is the most .interesting novel I have ever read.....
3. She began to work as a secretary in 2005.
- She has ..worked as a secretary since 2005....
4. He hasn’t seen his sister since she left for Japan.
⇒ He last saw his sister when she left for Japan.
1.Mr. Thanh always ( go ).....goes........... to work by bus.
2. Come on ! If we hutry, we may ........catch........ the bus. ( catch )
3. We ( start ).........started.......our new school year last month.
4. Would you like me ( go ).......to go......... with you ?
5. She ( visit )......will visit.......... Da Lat next summer, won't she ?
6. ( you/ever/watch )......have you ever watch.......... horror movies ?
7. She ( receive ).....received ........... her pen pal's letter this morning.
8. My brother is good at......sloving.......... ( solve ) math problems.
9. It ( not/rain )..........doesn't rain...... in the dry season.
10. Lan ( take ).......TOOK......... her younger brother to the zoo last Sunday.
11. Children are interested in ( watch ).........WATCHING....... cartoons.
12. He told me.......TO TRY......... ( try )......TO COME......... ( come ) to the meeting early.
13. Teenagers are fond of ......WEARING.......... ( wear ) jeans.
14. They ( give ).........GAVE....... the letter a few minutes ago.
15. You ( do ) ......WILL DO.......... the housework, won't you ?
16. We ( learn )......HAVE LEARNT.......... English for 7 years.
17. ( you/have )......HAVE YOU HAD.......... breakfast yet ?
18. My little sister ( drink )......DRINKS.......... milk every day.
20. They ( not/do ) ......HAVEN'T DONE.......... homework yet .
21. ( you/finish ).......HAVE YOU FINISHED......... your writing yet ?
22. He things that it ( rain )......WOULD RAIN.......... tonight.
23. I am excited about ( travel )........TRAVELING........ to Nha Trang next week.
24. They keep ( talk )........TALKING........ about an old friend they met yesterday.
25. It is usually easier.......TO LEARN......... ( learn ) a subject by............READING.... ( read ) books than by........LISTENING ........ ( listen ) to lectures.
26. Nam ( cook ).....WILL COOK........... dinner tonight, won't he ?
27. They've finished ( do )........DOING........ their homework.
28. Would you mind ( help )......HELPING.......... me with this work ?
29. We decided ( rent ) TO RENT a house with a swimming fool.
30. Let me ( pay ).......PAY......... for the meal. You paid last time.
31. He promises that he ( pass )....WILL PASS............ the exam.
32. Jimmy wishes he ( be )....WERE............ old enough to drive a car.
33. They decided ( go )..........TO GO...... our for dinner.
34. ( you/ever/be )......HAVE YOU EVER BEEN.......... to Tokyo ?
35. They asked me ( move ).......TO MOVE......... the table.
36. Could you show me how ( get )...TO GET............ to the station ?
37. You ( go ).....WILL GO........... to the party tonight, will you ?
38. His uncle ( teach )..........TAUGHT...... English in our school five years ago.
39. They ( not go ).......DIDN'T GO ........ to the movies last Sunday.
40. They ( build ) .......WILL BUILD......... a new school in this area next years.
41.Who is responsible for ( tidy )........TIDING........ the room ?
42. My brother ( work )........HAS WORKED ........ in this factory for many years.
43. They won't come to the party,......WILL.......... they ?
44.It ( be ) ...IS............. often hot in the summer.
45. I haven't seen him since he (arrive)........ARRIVED........
46. I ( be )......HAVE BEEN.......... busy since we last met.
47. We promise we ( come )........WILL COME........ soon.
48. The video film is so interesting that I ( see ).....HAVE SEEN........... it twice.
49.He is ashamed of ( steal ).......STEALING......... that money.
50. It is a first time I ( meet ).....HAVE MET........... him here.
51. I ( lose )......HAVE LOST..........my key. Can you help me look for it ?
52. We got tired of........WAITING........( wait ) for the weather......TO CLEAN..........( clean ) and finally decided........TO SET........( set ) out in the rain.
53. Bold and Mary ( be ) .....HAVE BEEN........... married for 10 years.
54. My father ( watch )..........WATCHES...... TV every night.
55. They ( already/clean ).......HAVE ALREADY CLEANED......... the house.
56. The students ( pass ) ..........WILL PASS...... the test, won't they ?
57. We ( already/see ).......HAVE ALREADY SEEN........cowboy movies.
58. Mary ( be ).....HAS BEEN........... in Vietnam for six months.
59. It was late, so we decided ( take )........TO TAKE........ a taxi.
60. The teacher ..........WON'T BE...... disappointed if I ........ISN'T........ lazy like this. ( not be / not be )
61. She always puts off ........DOING........ ( do ) the laundry.
62.Can you touch your toes without........BENDING........ ( bend ) your knees ?
63. Do you have any difficutly in ......SPEAKING..........( speak ) English ?
64. She suggested ........HAVING........ ( have ) dinner in a Chinese restaurant.
65. If you broke the traffic law like him, you ( get ).......WOULDN'T GET......... a fine
66. We're thinking of .........TRAVELING.......( travel ) by train.
67. Nga ( visit ).......WILL VISIT .........us this weekend, won't she ?
68. Thank you for ...........HELPING..... ( help ) me carry the goods.
69. I'm very sorry for ......BEING..........(be ) late; it was good of you.........TO WAIT.......( wait ) for me.
70. It takes me ten minutes ( drive )......TO DRIVE......... to work.
71. It sonetimes may be difficult ( get ).....TO GET........... a taxi during rush hour.
72. My mother asked me ( not drive ).......NOT TO DRIVE......... so fast.
73. People ( go )......WILL GO.......... on holidays to the moon, won't they ?
74. She was afraid of ( tell ) .......TELLING......... her parents the truth.
75. Nothing could prevent him from ( go ).......GOING......... there.
76. In 2030, more people ( have ).....WILL HAVE........... cars.
77. She used ( visit ) ......TO VISIT..........many interesting places when she ( be ) ......WAS.......... in the England.
78. Marry : I have some problems with my homework.
Peter : Don't worry. I ( help ).......WILL HELP..... you to slove them.
79. They ( visit ).....VISITED........... their grandparents last Sunday.
80. It is very difficult ( study )........TO STUDY........ English.
81. The Pikes ( live )...........HAVE LIVED..... in Liverpool since 1990.
82. I suggest ( go ).......GOING......... to scholl or to work by bikes to save energy.
83. We ( go ).........GO......swimming twice a week.
84. They ( already/ finish )......HAVE ALREADY FINISHED.......... their work.
85. I promise I ( learn ) ....WILL LEARN............harder.
86. I an used to ( get ).....GETTING........... up early every morning.
87. Tam is not good at ( repair )........REPAIRING........ things.
88. They advised us ( not go ).......NOT TO GO......... out alone at night.
89. I am used to ( stay )........STAYING........ up late.
90. ( learn ).....LEARNING.......... English is important.
91. We ( have )...........WILL HAVE..... dinner out, won't he ?
92. Tbe students are fond of ( read ) ......READING.......... books
93. She often ( wash ) .......WASHES.........the clothes in the morning.
94. She ( see ) .....HAS SEEN...........that film before.
95. My mother ( buy )............BOUGHT.... this shirt yesterday.
96. Mr. Nam is always busy ( work ).......WORKING......... on the farm.
97. I sometimes make my parents ( feel ).......FEEL.........sad.
98. Ba is keen on ( paint ).......PAINTING.........
99. We are happy ( get ).........TO GET....... good marks.
100. I suggest ( take ) ....TAKING........... a shower instead of a bath to save water.
Giúp t vs tui cần gấp
1.Dinousaur forssils can.find....(find) in every continent on Earth
2. What..have...you.done....since you..moved....here last month?(do/move)
3. My English skills...have improved .. greatly since I learned this course (improve)
4. This bridge..was built.....a long time ago(build)
5. Some trees..are being planted ...along the street at the moment (plant)
6. When I arrived at the garage,my car .was repairing ....(repair)
7. They.visited .....their old teacher every month last year (visit)
8. Four films.have been made...by Mr.George so far (make)
9. Many people .saved .... from the earthquake due to the warnings two weeks ago(save)
10.The boy .was laughed ..... at by his friends yesterday (laugh)
11. These exercises....will be corrected ... by the teacher next week (correct)
12. The house..collapsed ...suddenly and killed 5 people inside (collapse)
13. Last week I..offered ...a job in a bank ,but I didn't accept it (offer)
14. They.were watching ....television when I came last night (watch)
15. This room..swept... and cleaned every day(sweep)
1.Dinousaur forssils can...can..(find) in every continent on Earth
2. What...have..you...done..since you..moved....here last month?(do/move)
3. My English skills..have been improved... greatly since I learned this course (improve)
4. This bridge...was built....a long time ago(build)
5. Some trees..are being planted...along the street at the moment (plant)
6. When I arrived at the garage,my car ..was being repaired...(repair)
7. They..visited....their old teacher every month last year (visit)
8. Four films..have made..by Mr.George so far (make)
9. Many people ..was saved... from the earthquake due to the warnings two weeks ago(save)
10.The boy ...was laughed... at by his friends yesterday (laugh)
11. These exercises....will be correct... by the teacher next week (correct)
12. The house...was collapsed..suddenly and killed 5 people inside (collapse)
13. Last week I..offered...a job in a bank ,but I didn't accept it (offer)
14. They..were watching...television when I came last night (watch)
15. This room..is sweeped... and cleaned every day(sweep)
16. We...have sailed..for months by the time we reached the island (sail)
17. This coat must...be made..in Asia. Look at this label(make)
18. We hope the government....will pay..more attention to the environment protection (pay)
19.Mum, I promise I..will keep...my room clean (keep
20.Peter..always breaks...his bike(always/break)
21.It's 5 p.m now. Tom ...has rung... five times this afternoon (ring)
22.Before he applies for the job,he...got... more information about it (get)
23.Nam rarely drinks coffee in the morning,but today he...is drinking...coffee (drink)
24.They often....stay...up very late before they had important tests (stay)
25.In the last ten years,life in our country..was changed..dramatically (change)
26.The telephone is ringing. Ok.I..will answer...it(answer)
27.By the time we ..reached.... the village ,they had waited for us for two hours (reach)
28.She told me her name,but I...forgot..it.I can't remember it now (forget)
29.Mary ...always leaves... her dirty socks on the floor for me to pick up(always/leave)
30.During the last three months , I ...did... my career as a baby sister(do)
31.Her aunt will meet her when she ...arrives..at the airport (arrive)
32.I..will fly.... to Egypt on the flight E0023 tomorrow (fly)
33.The plane..will leave...at 8.15 tomorrow (leave)
34."I'd better get back to the hotel room before the storm." "Ok.I ..will see...you later(see)"
35.I have to get up early tomorrow.I..will teach..a physics class at 8.00 in the morning (teach)
36.I....didn't hear...the thunder last night because i....slept..(not hear/sleep)
37.I often feel upset because my son ....always forgets.. his homework (always/forget)
38.I felt a little better after I ....took ... the medicine (take)
39.Kathy often sits in the front row but today she..is sitting....in the last row(sit)
40.My aunt goes shopping as soon as she...gets...her salary(get)
41.It was raining hard but by the time class was over, the rain...stopped... (stop)
42.Sam has already made his plans.He...will leave...at noon tomorrow (leave)
43.Wake up!You..slept....long enough.It's time to get up(sleep)'l
44.I don't understand this problem.Don't worry! I....will help.....you (help)
45.After my roommates...finished....dinner,I got home last week (finish)
46.After eat lunch at 12 o'clock, I ...probably take.... a nap (probably/take)
47.I..have lived....at 337 Grand avenue since last September (live)
48.I will go back home when I...finish...my education (finish)
49.The police couldn't find out who ....broke..into the house that night (break)
50.I don't think that Tony...tried....to insult you at that time(try)
51.Galieo proved that the earth ..moves... around thesun(move)
52.I think that tomorrow...will be....a very big day for me (be)
53.I think it ..will snow.... . It's so cold tonight (snow)
54.Fred usually walks to school but this week he....will drive...his car (drive)
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.............................................................................
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
Last night we (watch) ____were watching______TV when the power (fail) _____failed_____.
2. London (change) _______has changed____ a lot since we first (come) _____came_____ to live here.
3. I (spend) ______have spent____ a lot of time travelling since I (get) _____got_____this new job.
4. She (have) _____has_____a hard life, but she’s always smiling.
5. He sometimes (come) ____comes______ to see his parents.
6. Last month I (be) _______was______ in the hospital for ten days.
7. What you (do) __________were you doing__________ when I (ring) __________rang______ you last night?
8. I (not see) __________haven't seen________ him since last Sunday.
9. My mother (come) _________will come_________ to stay with us next week.
10. When he lived in Manchester, he (work) _________was working________ in a bank.
11. Columbus (discover) __________discovered _________ America more than 400 years ago.
12. Listen! The birds (sing) ________are singing________.
13. You (receive) _______Have you received________ any letter from your parents yet?
14. How long Bob and Mary (be) ___________have Bob and Mary been________ married?
15. She (ask) ________has asked_________ me to tellabout him several times.
16. John (watch) ________was watching__________ TV at 8:00 last evening.
17. He (do) ________had done________ his homework before he (go) _______went______ to the cinema.
18. Hurry up! The train (come) __________is coming__________.
19. We (not talk) _______haven't talked________ to each other for a long time.
20. He (feel) __________felt_______ asleep while he (do) __________was doing________ his homework.
Give the correct form of verbs in bracket
1. She (study) …………is studying….…. English in the class now.
2. Nga usually (have) ……has…….breakfast at 6.30.
3. They (not/ have)………....don't have...........breakfast every morning.
4. I'm afraid I (not / be)………won't be………. able to come tomorrow.
5. Where ........is....... she (be).............. ? She (play) ...............is playing...............the guitar in the room.
6. We (go)………will go…… to the beach next Sunday.
7. My sister (get) .......got........married last month.
8. Daisy (come) ........has come.......to her grandparents’ house for 3 days.
9. My computer (be) ........was....... broken yesterday.
10. He (buy) .......has bought........ me a big teddy bear on my birthday since last week.
11. This time next week we ( study)...........will be studying.................. Unit 1.
12. At 5 o’clock tomorrow, they ( cycle)...........will be cycling............around this lake.
13. People (already leave) ..........had already left..............the flooded villages when rescues workers arrived.
14. I (find)...........found............ my pen after I (buy)..............had bought............. a new one.
15. The boy fell and hurt himself while he (ride)..............was riding............... a bicycle.