K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

17 tháng 5 2021

1B 2A 3C 4A 5B 6C 7B 8A 9C 10B

I. fill each gap in the following sentences with one of the particles in the box on after away back down off over to up upon in with 1 it's time Edward got married and settled_____. He must be well over thirty 2 could you put me____ for a few days until I find a place of my own? 3 he's very easy going. he takes______his father in that respect 4 you haven't thrown____yesterday's paper, have you?I haven't read it yet 5 I didn't take_____skiing...
Đọc tiếp

I. fill each gap in the following sentences with one of the particles in the box

on after away back down off over to up upon in with

1 it's time Edward got married and settled_____. He must be well over thirty
2 could you put me____ for a few days until I find a place of my own?
3 he's very easy going. he takes______his father in that respect
4 you haven't thrown____yesterday's paper, have you?I haven't read it yet
5 I didn't take_____skiing immediately but I began to enjoy it once I'd had a few lessons
6 "Now , let's go___the main facts of the case again in case we've missed something". the inspector said
7Sorry, I'm late. When the alarm clock rang I must have turned over and gone____to sleep
8 Don't let me____,will you? I'm relying on your support
9 I suppose, I'd better start that composition. I can't put_____doing it any longer
III. finish each of the following sentences in such a way that it means the same as the sentence printed before it
1 the doctor asked:"Why didn't you make an appointment?"
-> the doctor asked her
2 did he say why he hadn't reached the island?
->did he give
3 Is smoking permitted in British cinemas?
-> are we
4 please don't play your music so loudly
-> would
4 with the introduction of the computers into the classrooms, students' performance has been greatly enhanced
->the introduction
5 julia didn't listen to what her doctor told her(notice)
6 please do not stop your work(carry)
7 jenny didn't feel like going to the party(mood)
8 he wants her students to call him 'professor'(address)
9 you should make an effort to get out and about more
->It's high time
10. It seems as if there is a slight deterioration in his physical condition
->his physical condition
11 I have forgotten that commentator's name but he's very well-known
->that commentator,
12 we can say that the leisure industry will be the money spinner of the future
->the laisure industry
13 it was overheating that caused his heart attact
->if
14 the house has got everything except a large garden (lacks)
15 i'm afraid to say that we haven't got any oil left (up)
16 the film is similar to Shakespeare's Hamlet in a number of ways (bears)
17 In all probability we will finsh the project on Thursday (chances)
18 The Embassy said it would not be neccessary for me to get a visa (need)
19 I drive to work every day, but today i go by bus
-> Instead
20 Mary does not work at this company any more
->No
21 we happened to meet John at the airport
->We met
22 more people live in New York than in Washington
->not so
23 we never intended to travel abroad
->we never had
24 immediately after his arrival, things went wrong
->no

0
10 tháng 10 2020

It's ages since I last went to an Indian restaurant

2. This is the first time I have visited Japan

3. We haven't talked for a long time

The last time we talked was a long time ago

4. I haven't had such a delicious meal before

5. He has not earned any money for two months

6. I haven't eaten raw fish since I left Japan

Lately, I've been, I've been thinkingI want you to be happier, I want you to be happierWhen the morning comesWhen we see what we've becomeIn the cold light of day we're a flame in the windNot the fire that we've begunEvery argument, every word we can't take back'Cause with the all that has happenedI think that we both know the way that this story endsThen only for a minuteI want to change my mind'Cause this just don't feel right to meI wanna raise your spiritsI want to see you smile butKnow...
Đọc tiếp
Lately, I've been, I've been thinking
I want you to be happier, I want you to be happierWhen the morning comes
When we see what we've become
In the cold light of day we're a flame in the wind
Not the fire that we've begun
Every argument, every word we can't take back
'Cause with the all that has happened
I think that we both know the way that this story endsThen only for a minute
I want to change my mind
'Cause this just don't feel right to me
I wanna raise your spirits
I want to see you smile but
Know that means I'll have to leaveKnow that means I'll have to leave
Lately, I've been, I've been thinking
I want you to be happier, I want you to be happierWhen the evening falls
And I'm left there with my thoughts
And the image of you being with someone else
Well, that's eating me up inside
But we run our course, we pretend that we're okay
Now if we jump together at least we can swim
Far away from the wreck we madeThen only for a minute
I want to change my mind
'Cause this just don't feel right to me
I wanna raise your spirits
I want to see you smile but
Know that means I'll have to leaveKnow that means I'll have to leave
Lately, I've been, I've been thinking
I want you to be happier, I want you to be happierSo I'll go, I'll go
I will go, go, go
So I'll go, I'll go
I will go, go, goLately, I've been, I've been thinking
I want you to be happier, I want you to be happier
Even though I might not like this
I think that you'll be happier, I want you to be happierThen only for a minute (only for a minute)
I want to change my mind
'Cause this just don't feel right to me
I wanna raise your spirits
I want to see you smile but
Know that means I'll have to leaveKnow that means I'll have to leave
Lately, I've been, I've been thinking
I want you to be happier, I want you to be happierSo I'll go, I'll go
I will go, go, go Dịch sang Tiếng Việt 
2
1 tháng 4 2022

Gần đây, tôi đã, tôi đã suy nghĩ
Tôi muốn bạn hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn
Khi chúng ta thấy những gì chúng ta đã trở thành
Trong ánh sáng lạnh giá của ban ngày, chúng ta là ngọn lửa trong gió
Không phải ngọn lửa mà chúng ta đã bắt đầu
Mọi tranh luận, mọi lời nói chúng ta không thể rút lại
Vì tất cả những gì đã xảy ra
Tôi nghĩ rằng cả hai chúng ta đều biết cách mà câu chuyện này kết thúc.
Tôi muốn thay đổi suy nghĩ của mình
Bởi vì điều này chỉ cảm thấy không phù hợp với tôi
Tôi muốn nâng cao tinh thần của bạn
Tôi muốn nhìn thấy bạn cười nhưng
Biết điều đó có nghĩa là tôi sẽ phải đi
Gần đây, tôi đã, tôi đã suy nghĩ
Tôi muốn bạn hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn Khi buổi tối buông xuống
Và tôi ở đó với những suy nghĩ của mình
Và hình ảnh bạn đang ở bên người khác
Chà, điều đó đang ăn thịt tôi bên trong
Nhưng chúng tôi điều hành khóa học của mình, chúng tôi giả vờ rằng chúng tôi ổn
Bây giờ nếu chúng ta nhảy cùng nhau ít nhất chúng ta có thể bơi
Cách xa xác tàu mà chúng tôi đã thực hiện Sau đó chỉ trong một phút
Tôi muốn thay đổi suy nghĩ của mình
Bởi vì điều này chỉ cảm thấy không phù hợp với tôi
Tôi muốn nâng cao tinh thần của bạn
Tôi muốn nhìn thấy bạn cười nhưng
Biết điều đó có nghĩa là tôi sẽ phải đi
Gần đây, tôi đã, tôi đã suy nghĩ
Tôi muốn bạn hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn Vì vậy tôi sẽ đi, tôi sẽ đi
Tôi sẽ đi, đi, đi
Vì vậy, tôi sẽ đi, tôi sẽ đi
Tôi sẽ đi, đi, đi Gần đây, tôi đã, tôi đã suy nghĩ
Tôi muốn bạn hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn
Mặc dù tôi có thể không thích điều này
Tôi nghĩ rằng bạn sẽ hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn Vậy chỉ trong một phút (chỉ trong một phút)
Tôi muốn thay đổi suy nghĩ của mình
Bởi vì điều này chỉ cảm thấy không phù hợp với tôi
Tôi muốn nâng cao tinh thần của bạn
Tôi muốn nhìn thấy bạn cười nhưng
Biết điều đó có nghĩa là tôi sẽ phải đi
Gần đây, tôi đã, tôi đã suy nghĩ
Tôi muốn bạn hạnh phúc hơn, tôi muốn bạn hạnh phúc hơn Vì vậy tôi sẽ đi, tôi sẽ đi
Tôi sẽ đi, đi, đi

1 tháng 4 2022

hay nhưng ko hay bằng bài này :))

Wise man call me the crazy
Loving foolishly
Dream about you all the time
Every night I fall asleep
Chasing and dreaming
Looking for your eyes DaisyI am the foolish Gatsby who's found drown in love
Can't you see my heart burning right through my hands?
'Cause your smile lifts me above and beyond the blue sky
In the darkest moments here I still can see your eyesLove you to the moon and back
I can let you know this fact
Love you to the moon and back
I'm so freaking missing youAim for the moon yet so far (so far)
I can't land among the stars (stars)
Love you to the moon and back
I'm so freaking missing you (I'm so freaking missing you)I never let my love get so close (to, be, doo, wah)
To you 'cause it hurts swear to God I wish I could (no, no, no)
'Cause I'm the foolish Gatsby who's found drown in love
(Found drown in love) to, be, doo, wah
Can't you see my heart burning right through my hands?
Da, de, bah, bah (whoa)'Cause your smile lifts me above and beyond the blue sky
To, be, doo, doo, doo
In the darkest moments here still can see your eyesLove you to the moon and back
I can't let you know this fact
Love you to the moon and back
I'm so freaking missing youAim for the moon yet so far (so far)
I can't land among the stars (stars)
Love you to the moon and back
I'm so freaking missing you (I'm so freaking missing you)Love you to the moon and back
I can let you know this fact
Love you to the moon and back
I'm so freaking missing you (I'm so freaking missing you)
Aim for the moon yet so far
I can land among the stars
Love you to the moon and back
I'm so freaking missing you
Help me 11. John has not had his hair cut for over six months. ⇨ It is ________________________________________________________________ 12. I has never seen such a beautiful building. ⇨ It's the most _________________________________________________________ 13. I have never read such a romantic story. ⇨ This is the most ______________________________________________________ 14. They had never had such a cold winter. ⇨ It was the...
Đọc tiếp

Help me

11. John has not had his hair cut for over six months.
⇨ It is ________________________________________________________________
12. I has never seen such a beautiful building.
⇨ It's the most _________________________________________________________
13. I have never read such a romantic story.
⇨ This is the most ______________________________________________________
14. They had never had such a cold winter.
⇨ It was the ___________________________________________________________
15. You will never meet anyone more dangerous than Mrs Jones.
⇨ Mr. Jones is the most __________________________________________________
16. Man has never had such efficient servants as computer.
⇨ Computer is the most __________________________________________________
17. I haven't played football since 2000.
⇨ The last time _________________________________________________________
18. I haven't been to HCM city for 2 years.
⇨ The last time _________________________________________________________
19. I 've never met such a famous person before.
⇨ It is the first time ______________________________________________________
20. She hasn't seen that boy here before.
⇨ It is the first __________________________________________________________
21. She hasn't written to us since last year.
⇨ The last time _________________________________________________________
22. She started to learn E 8 years ago.
⇨ It’s _________________________________________________________________
23. He hasn't laughed so much for ages.
⇨ It’s _________________________________________________________________
24. I haven't enjoyed myself so much for years.

⇨ It’s _________________________________________________________________
25. The telephone rang for hours.
⇨ It’s hours ____________________________________________________________
26. I haven't seen him for ages.
⇨ It’s _________________________________________________________________
27. I have learned English for four years.
⇨ We started ___________________________________________________________
28. Ly’s father started to stop smoking last year.
⇨ Ly’s father ___________________________________________________________
29. The editor hasn’t written to Mai for a month.
⇨ The editor last _________________________________________________________
30. How long have you learned spanish?
⇨ How long ago _________________________________________________________

2
18 tháng 2 2020

Help me

11. John has not had his hair cut for over six months.
⇨ It is over six months since John last had his hair cut
12. I has never seen such a beautiful building.
⇨ It's the most beautiful building I have ever seen
13. I have never read such a romantic story.
⇨ This is the most romantic story I have ever read
14. They had never had such a cold winter.
⇨ It was the first time thay have ever had such a cold winter
15. You will never meet anyone more dangerous than Mrs Jones.
⇨ Mr. Jones is the most dangerous person you have ever meet
16. Man has never had such efficient servants as computer.
⇨ Computer is the most efficient servant that man has ever had
17. I haven't played football since 2000.
⇨ The last time I played football was in 2000.
18. I haven't been to HCM city for 2 years.
⇨ The last time I went to HCM City was 2 years ago.
19. I 've never met such a famous person before.
⇨ It is the first time I have ever met such a famous person
20. She hasn't seen that boy here before.
⇨ It is the first she has seen that boy here
21. She hasn't written to us since last year.
⇨ The last time she wrote to us was last year
22. She started to learn E 8 years ago.
⇨ It’s 8 years since she started to learn English
23. He hasn't laughed so much for ages.
⇨ It’s ages since he laughed so much
24. I haven't enjoyed myself so much for years.

⇨ It’s years since I enjoyed myself so much
25. The telephone rang for hours.
⇨ It’s hours since the telephone rang
26. I haven't seen him for ages.
⇨ It’s ages since I last saw him

27. I have learned English for four years.
⇨ We started to learn English four years ago
28. Ly’s father started to stop smoking last year.
⇨ Ly’s father has stopped smoking since last year
29. The editor hasn’t written to Mai for a month.
⇨ The editor last wrote to Mai a month ago
30. How long have you learned spanish?
⇨ How long ago did you start to learn Spanish

18 tháng 2 2020

mấy cái ' là dấu ' đấy (nó bị lỗi) hihi

23 tháng 10 2020

1, It's ages since I went to an Italian restaurant.

2, By the time we get to the theatre, the play will have begun.

3, You ought to have your hair cut.

4, An apple a day is thought to do you good.

5, I've never played water-polo before.

4 tháng 12 2021

1, It's ages since I went to an Italian restaurant.

2, By the time we get to the theatre, the play will have begun.

3, You ought to have your hair cut.

4, An apple a day is thought to do you good.

5, I've never played water-polo before.

3 tháng 12 2018

Ex: complete the sentence, using since, for or ago.

1) She has been ill.....since.....2nd October 1996.

2) They haven't seen him....for...... the past three years .

3) They visited Poland twenty years.... .. .ago......

4) She has had no free time.. .. .for....several months.

5) I haven't had time to look at your book ...since......thursday!

6) He migrated to Istanbul five months. ......ago......

7) I've been studying Italian. ....since.......I was five years old.

8) The chairman of the board has been employed in the finance industry. ... . ...since.... 1984.

3 tháng 12 2018

Ex: complete the sentence, using since, for or ago.

1) She has been ill....since......2nd October 1996.

2) They haven't seen him.....for..... the past three years .

3) They visited Poland twenty years.... ago.. .......

4) She has had no free time.. .for. .....several months.

5) I haven't had time to look at your book ..since.......thursday!

6) He migrated to Istanbul five months. ....ago........

7) I've been studying Italian. ...since........I was five years old.

8) The chairman of the board has been employed in the finance industry. ... . .since...... 1984

PRATICE 1. when alice ___ into the fridge, all the food had gone a. is looking b. looks c. looked d. was looked 2. i ___ tom and ann at the airport a few weeks ago a. have meet b. had met c. met c. was met 3. before Jennifer won the lottery, she __ any kind of the contest a. hasn;t entered b. doesn't enter c. wasn't entering d. hadn't entered 4. My father __ me to the zoo when i was a child a. has taken b. is taking c. took d. takes 5. by the time we arrived at the hall, the lecturer ___ halff...
Đọc tiếp

PRATICE
1. when alice ___ into the fridge, all the food had gone
a. is looking b. looks c. looked d. was looked
2. i ___ tom and ann at the airport a few weeks ago
a. have meet b. had met c. met c. was met
3. before Jennifer won the lottery, she __ any kind of the contest
a. hasn;t entered b. doesn't enter c. wasn't entering d. hadn't entered
4. My father __ me to the zoo when i was a child
a. has taken b. is taking c. took d. takes
5. by the time we arrived at the hall, the lecturer ___ halff of his speech
a. made b. had made c. is making d. will make
6. yesterday, i came back home late, and then i ___ a shower
a. took. b. was taking c. had taken d. would take
7. the police ___ them a lot of questions before they released them
a. has asked b.ask c. had asked d. would ask
8. my brother ___ in the army from 1980 to 1983
a. is serving b. serves c. served d. has served
9. after the thieves ___ into this big building they went into the dining room and took some valuable things away
a. entered b. had entered c. were entering d. had been entering
10. we ____ Dorothy since last saturday
a. don't see b. haven't seen c. didn't see d. hadn't seen
11. the train ___ half an hour ago
a. has been leaving b. left c. has left d. had left
12. christopher Columbus ___ american more than 500 year ago
a. discovered b. has discovered c. had discovered d. had been discovering
13. the man got out of the car, ___ round to the back and opened the book
a. walking b. walked c. walks d. walk
14. i have never played badminton before. this is the first time i ___ to play
a. try b. tried c. have tried d. am trying
15. since____, i have heard nothing from him
a. he had left b. he left c. he has left d. he was left

II use the corect form of the verbs in the parenthese
1. i hope ___(have ) a job
2. try to avoid (make)___ him angry
3. he is thinking of (leave)____ his job
4. please let me (know) ___ your decision
5. it's no use (wait)____
6. i hate (see)____ a child cry
7. it's difficult (get)____ used to getting up early
8. stop (argue)____ and star (work)____
9. i'd like (have)_____ a look at your new car
10. i'm looking forward (see) ___ you again
11. would you mind (not touch)___ the wire
12. i'm sorry (disappoint)____ you
13. he told me ( sign)____ a paper admitting his guilt
14. i don't enjoy (go)____ to the dentist
15. i forget (meet) ___you
16. don't forget (give)_____ her my regards
17/ he promised (not go)____ to school late
18/ they practise (speak) english every day
19. the teacher asked us (write)_____ the exercises
20. my father gave up (smoke) 12 years ago
21. she refused (answer) ____ my question
22. he suggests (go)___ on a trip
23. they agree (camp) ___ in that field
24. they didn't want me (buy) that old house
25. the doctor advised me ( do) exercise every morning

REWRITE
1. shall we invite our friends on sundays
-> do you consider
2. would you please give me a hand
- would you mind
3. why don't we stay at home for a change
- i suggest
4. shall we go for a ride
- what about
5. asking him for help is useless
-It's no use
6. we expect to meet them again
- we look forward
7. it's not a good idea to travel during the rush hour
- it's better to avoid

pratice
1. although tom was a poor student, he studied very well
- In spite of
2. mary could not go to school because she was sick
- because of
3. tom was admitted to the university although his grades were bad
- despite
4. because there was a big storm, i stayed at home
because of
5. because the weather is cold, the crops are late this year
- because
6. though he didn't earn enough money, he bought that house
- in spite of

1
11 tháng 12 2017

1. when alice ___ into the fridge, all the food had gone
a. is looking b. looks c. looked d. was looked
2. i ___ tom and ann at the airport a few weeks ago
a. have meet b. had met c. met c. was met
3. before Jennifer won the lottery, she __ any kind of the contest
a. hasn;t entered b. doesn't enter c. wasn't entering d. hadn't entered
4. My father __ me to the zoo when i was a child
a. has taken b. is taking c. took d. takes
5. by the time we arrived at the hall, the lecturer ___ halff of his speech
a. made b. had made c. is making d. will make
6. yesterday, i came back home late, and then i ___ a shower
a. took. b. was taking c. had taken d. would take
7. the police ___ them a lot of questions before they released them
a. has asked b.ask c. had asked d. would ask
8. my brother ___ in the army from 1980 to 1983
a. is serving b. serves c. served d. has served
9. after the thieves ___ into this big building they went into the dining room and took some valuable things away
a. entered b. had entered c. were entering d. had been entering
10. we ____ Dorothy since last saturday
a. don't see b. haven't seen c. didn't see d. hadn't seen
11. the train ___ half an hour ago
a. has been leaving b. left c. has left d. had left
12. christopher Columbus ___ american more than 500 year ago
a. discovered b. has discovered c. had discovered d. had been discovering
13. the man got out of the car, ___ round to the back and opened the book
a. walking b. walked c. walks d. walk
14. i have never played badminton before. this is the first time i ___ to play
a. try b. tried c. have tried d. am trying
15. since____, i have heard nothing from him
a. he had left b. he left c. he has left d. he was left

PRATICE 1. when alice ___ into the fridge, all the food had gone a. is looking b. looks c. looked d. was looked 2. i ___ tom and ann at the airport a few weeks ago a. have meet b. had met c. met c. was met 3. before Jennifer won the lottery, she __ any kind of the contest a. hasn;t entered b. doesn't enter c. wasn't entering d. hadn't entered 4. My father __ me to the zoo when i was a child a. has taken b. is taking c. took d. takes 5. by the time we arrived at the hall, the lecturer ___ halff...
Đọc tiếp

PRATICE
1. when alice ___ into the fridge, all the food had gone
a. is looking b. looks c. looked d. was looked
2. i ___ tom and ann at the airport a few weeks ago
a. have meet b. had met c. met c. was met
3. before Jennifer won the lottery, she __ any kind of the contest
a. hasn;t entered b. doesn't enter c. wasn't entering d. hadn't entered
4. My father __ me to the zoo when i was a child
a. has taken b. is taking c. took d. takes
5. by the time we arrived at the hall, the lecturer ___ halff of his speech
a. made b. had made c. is making d. will make
6. yesterday, i came back home late, and then i ___ a shower
a. took. b. was taking c. had taken d. would take
7. the police ___ them a lot of questions before they released them
a. has asked b.ask c. had asked d. would ask
8. my brother ___ in the army from 1980 to 1983
a. is serving b. serves c. served d. has served
9. after the thieves ___ into this big building they went into the dining room and took some valuable things away
a. entered b. had entered c. were entering d. had been entering
10. we ____ Dorothy since last saturday
a. don't see b. haven't seen c. didn't see d. hadn't seen
11. the train ___ half an hour ago
a. has been leaving b. left c. has left d. had left
12. christopher Columbus ___ american more than 500 year ago
a. discovered b. has discovered c. had discovered d. had been discovering
13. the man got out of the car, ___ round to the back and opened the book
a. walking b. walked c. walks d. walk
14. i have never played badminton before. this is the first time i ___ to play
a. try b. tried c. have tried d. am trying
15. since____, i have heard nothing from him
a. he had left b. he left c. he has left d. he was left

II use the corect form of the verbs in the parenthese
1. i hope ___(have ) a job
2. try to avoid (make)___ him angry
3. he is thinking of (leave)____ his job
4. please let me (know) ___ your decision
5. it's no use (wait)____
6. i hate (see)____ a child cry
7. it's difficult (get)____ used to getting up early
8. stop (argue)____ and star (work)____
9. i'd like (have)_____ a look at your new car
10. i'm looking forward (see) ___ you again
11. would you mind (not touch)___ the wire
12. i'm sorry (disappoint)____ you
13. he told me ( sign)____ a paper admitting his guilt
14. i don't enjoy (go)____ to the dentist
15. i forget (meet) ___you
16. don't forget (give)_____ her my regards
17/ he promised (not go)____ to school late
18/ they practise (speak) english every day
19. the teacher asked us (write)_____ the exercises
20. my father gave up (smoke) 12 years ago
21. she refused (answer) ____ my question
22. he suggests (go)___ on a trip
23. they agree (camp) ___ in that field
24. they didn't want me (buy) that old house
25. the doctor advised me ( do) exercise every morning

REWRITE
1. shall we invite our friends on sundays
-> do you consider
2. would you please give me a hand
- would you mind
3. why don't we stay at home for a change
- i suggest
4. shall we go for a ride
- what about
5. asking him for help is useless
-It's no use
6. we expect to meet them again
- we look forward
7. it's not a good idea to travel during the rush hour
- it's better to avoid

pratice
1. although tom was a poor student, he studied very well
- In spite of
2. mary could not go to school because she was sick
- because of
3. tom was admitted to the university although his grades were bad
- despite
4. because there was a big storm, i stayed at home
because of
5. because the weather is cold, the crops are late this year
- because
6. though he didn't earn enough money, he bought that house
- in spite of

1
11 tháng 12 2017

1. shall we invite our friends on sundays
-> do you consider inviting our friends on sundays?
2. would you please give me a hand
- would you mind giving me a hand?
3. why don't we stay at home for a change
- i suggest that we should stay at home for a change.
4. shall we go for a ride
- what about going for a ride?
5. asking him for help is useless
-It's no use asking him for help
6. we expect to meet them again
- we look forward to meeting them again
7. it's not a good idea to travel during the rush hour
- it's better to avoid travelling during the rush hour.

11 tháng 12 2017

làm em bài này được ko bác, em cảm ơn
https://hoc24.vn/hoi-dap/question/514199.html