I. Choose A, B, C or D that best fits the blank space in each sentence:1. What aspect _______ learning English do you find the most difficult?A. in B. on C. at D. of2. Find the word which has the unde...

1. What aspect _______ learning English do you find the most difficult?A. in B. on C. at D. of2. Find the word which has the underlined part pronounced differently from that of the others.A. cause B. laugh C. naughty D. pause3. Mary has read this article on the website, _______ ?A. hasn’t she B. has she C. haven’t she D. hasn’t Mary4. He told me he _______ leave the city the following day.A. will have to B. would have to C. has to D. had to5. You like watching sports, don’t you? .~ _______.A. Not really B. No, I am not C. Yes, I am D. No, I do6. Find the word which has a different stress pattern from that of the others.A. im'pressive B. u'nique C. ad'vantage D. 'aspect7. She said that she _______ learning English with you.A. like B. liked C. liking D. to like8. She asked me how I _______ English in the future.A. use B. will use C. would use D. used9. When I _______ to see him last night, he _______ a newspaper.A. come / is reading B. come / reads C. came / read D. came / was reading10. You watch the News, don’t you? – _______.A. Me too B. Yes, every day C. No, I am not D. Yes, I am11. Find the word which has a different stress pattern from that of the others.A. tui'tion B. 'violence C. 'challenge D. 'excellence12. Find the word which has the underlined part pronounced differently from that of the others.A. character B. chair C. check D. chalk13. My children enjoy _______ up late when there is something special on TV.A. being allowed to stay B. allowing to stayC. be allowing to stay D. being allowing stay14. You weren’t listening, _______?A. wasn’t B. was I C. weren’t you D. were youCâu trả lời: 1. What aspect _______ learning English do you find the most difficult?A. in B. on C. at D. of2. Find the word which has the underlined part pronounced differently from that of the others.A. cause B. laugh C. naughty D. pause3. Mary has read this article on the website, _______ ?A. hasn’t she B. has she C. haven’t she D. hasn’t Mary4. He told me he _______ leave the city the following day.A. will have to B. would have to C. has to D. had to5. You like watching sports, don’t you? .~ _______.A. Not really B. No, I am not C. Yes, I am D. No, I do6. Find the word which has a different stress pattern from that of the others.A. im'pressive B. u'nique C. ad'vantage D. 'aspect7. She said that she _______ learning English with you.A. like B. liked C. liking D. to like8. She asked me how I _______ English in the future.A. use B. will use C. would use D. used9. When I _______ to see him last night, he _______ a newspaper.A. come / is reading B. come / reads C. came / read D. came / was reading10. You watch the News, don’t you? – _______.A. Me too B. Yes, every day C. No, I am not D. Yes, I am11. Find the word which has a different stress pattern from that of the others.A. tui'tion B. 'violence C. 'challenge D. 'excellence12. Find the word which has the underlined part pronounced differently from that of the others.A. character B. chair C. check D. chalk13. My children enjoy _______ up late when there is something special on TV.A. being allowed to stay B. allowing to stayC. be allowing to stay D. being allowing stay14. You weren’t listening, _______?A. wasn’t B. was I C. weren’t you D. were you

I. Choose A, B, C or D that best fits the blank space in each sentence:1. What aspect _______ learning English do you fi...

Hãy tham gia nhóm Học sinh Hoc24OLM

๖ۣۜVɪᎮεr★๖ۣۜƘiйɠツ๖ۣۜ

18 tháng 10 2021 lúc 22:12

PART A : PRONUNCIATIONSI. Choose the word (A, B, C or D) whose underlined part is pronounced differently from the others1. A. casual B. baggy C. flat D. equal2. A. chart B. chair C. school D. cheer3. A. rained B. laughed C. traveled D. leanedII. Choose the word (A, B, C or D)whose main stress is placed differently from the others in each4. A.happy B. listen C. happen D. advise5. A. invent B. provide C. teacher D. decidePART B : VOCABULARYS AND GRAMMARSI.Give the correct form of the verbs in brac...

Đọc tiếp

PART A : PRONUNCIATIONS

I. Choose the word (A, B, C or D) whose underlined part is pronounced differently from the others
1. A. casual B. baggy C. flat D. equal
2. A. chart B. chair C. school D. cheer
3. A. rained B. laughed C. traveled D. leaned
II. Choose the word (A, B, C or D)whose main stress is placed differently from the others in each
4. A.happy B. listen C. happen D. advise
5. A. invent B. provide C. teacher D. decide

PART B : VOCABULARYS AND GRAMMARS
I.Give the correct form of the verbs in brackets in the following sentences
6. The children always look forward to (receive)_________________toys from their parents.
7. Where _________________you (go) _________________ if you had a lot of money?
8. The room looks tidy. Somebody (clean) _________________ it.
9. When I got to the station yesterday, my pen pal (wait)_________________for me.
10. This book (write) _________________for children last year.
II.Give the correct form of the words given to complete the sentences
11.The small children are very_________________in cartoon. INTERST
12. Many tourists have been attracted by the _________________of Ha Long Bay. BEAUTIFUL
13. We love Nam because of his _________________to the children. KIND
14. I like Mr Lanh because he always talks to his partners_________________. POLITE
15. This Chinese knife is _________________It can nothing. USE
III. Choose the word / phrase (A, B, C or D) that best fits the space in each sentence.
16.She has never been late for class, _________?
A. isn’t she B. is she C. hasn’t she D. has she
17.The man_________met you at the bus stop yesterday is my brother.
A. which B. who C. whom D. where
18.Thank you for looking_________the children while I was out.
A. at B. after C. for D. up
19.If energy_________inexpensive and unlimited, many things in the world would be different.
A. is B. will be C. were D. would be
20.Nam: "Would you like a glass of beer?" - Long: "_________"
A. No, let's not B. No, I don't C. No, thanks D. No, I wouldn't
21.Hung is a very_________person. I really like talking with him.
A. interested B. interesting C. bored D. boring
22.I used _________to school by bike.
A. to go B. went C. gone D. going
23.He suggested_________ a taxi to the cinema.
A. taking B. take C. to take D. takes
24.We have written to each other _________last Christmas.
A. for B. since C. until D. before
25.They decided to go_________it was raining heavily.
A. and B. but C. though D. since

PART C : READING

I.Complete the passage with the words in the box

team each are require gets

There (26)_______main kinds of sports: team sports and individual sports. Teams sports are such
as baseball, basketball and volleyball. Team sports (27) _______ two separate teams. The teams play
against each other. They compete (28)_______ each other in order to get the best score. For example,
in a football game, if (29)_______A gets six points and team B (30)_______ three points, team A win
the game. Team sports are sometimes called competitive sports.
II. Read the following passage and mark the letter A, B, C, or D on your answer sheet to choose the
word or phrase that bestfits each ofthe numbered blanks from 31 to 35.
English is one of the most popular languages in the world. It comes second in the number of
speakers after Chinese. In Vietnam, more and more people are studying English and they consider it
a key to success. However, not everyone knows how to learn English effectively.
The best way to improve the four skills: speaking, listening, reading, and writing is to practice
regularly. You should make use of every opportunity to speak English with friends in class or at
English speaking clubs or with ourselves in front of the mirror. Learning by heart all the words does
not help much if you do not read a lot because you will easily forget what you have learnt. Reading
books, listening to the radio and watching films are better ways to memorize words. Besides, English
learners should not be so shy because making mistakes is unavoidable in learning foreign languages.
Practicing speaking a lot is a good way to correct your mistakes.
31. The word “memorize" in paragraph 2 is CLOSEST in meaning to ___________ .
A. forget B. remember C. communicate D.stressful
32. How many skills are mentioned in paragraph 2?
A. 2 B. 5 C. 4 D.9
33. The passage is mainly about _________________
A. how to read books, listen to the radio and watch films.
B. how to learn English effectively.
C. people who study English in Vietnam.
D.people good at English
34. According to the passage, which of the following statements is TRUE?
A. English learner should be shy if they make mistakes.
B. You should never speak English with yourselves.
C. Many Vietnamese people consider English a key to success.
D.English is open the key
35. A good way to correct your mistakes is____________ .
A. avoiding speaking English
B. practicing speaking English a lot
C. stopping learning English
D. reading book
III.Read and choose the word (A, B, C or D) that best fits the blank space in the following passage.
New Year is one of the most important (36) ______in the United States. On New Year’s Eve, most
people go to the parties. At twelve o’clock (37) ______night, everybody says “Happy New Year” and
they wish their friends and relatives good luck. New Year’s Eve is usually a long night to many
people. They didn’t go home until morning. Another holiday, Halloween, is mainly for children. On
this holiday, children dress as witches, ghosts or others. Most children go from house to house asking
for candy and fruit. (38) ______ the people at the house do not give (39) ______candy, the children
will say a trick on them. But this (40) ______ever happens. Most people give them candy or fruits.
36. A. festivals B. meetings C. contests D. courses

37. A. on B. at C. in D. for
38. A. Whether B. So C. Although D. If
39. A. they B. them C. their D. theirs
40. A. soon B. hard C. hardly D. always

PART D : WRITING
I.Rewrite the following sentences so that keep the same meaning.
41. What a pity. Mrs Lan can not go to Singapore with us.
→ We wish ________________________________________________________________
42. They built this palace in the 17th century.
→ This ____________________________________________________________________
43. Keep quiet or I’ll take you go out immediately.
→ Unless you ______________________________________________________________
44. Working at night is experient for me.
→ It is_____________________________________________________________________
45. “Is there a TV in your bedroom?”.
→I asked Lan ______________________________________________________________
II.Complete the second sentence so that it means the same as the first sentence, using the word
given. Don’t change the word given.
46.“Do you have English on Monday and Wednesday?” said Lan. HAD
→Lan asked me ____________________________________________________________
47.My new school has twenty four classrooms. ARE
→There ___________________________________________________________________
48.You have to clean the classroom next Tuesday. BE
→The classroom ___________________________________________________________
49.Becausse of the hard rain, we couldn’t go out last night. BECAUSE
→We couldn’t _____________________________________________________________
50.How far is it from your home city to Hanoi capital? DISTANCE
→What is _________________________________________________________________

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

•Mïn•Armÿ-Blïnk

15 tháng 6 2019 lúc 10:59

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence. 6. Lan wishes she _________a long vacation.A. has B. had C. have D. having7. He saw that film _________7.00 p.m _________Sunday. A. on-from B. in-at C. at-at D. at-on8. You like watching sports, _________, Peter? A. do you B. aren’t you C. don’t you D. doesn’t he9. You shouldn’t eat_________. It’s not good for your health. A. quick B. quickly C. fastly D. slow10. Minh got wet _________he forgot his umbre...

Đọc tiếp

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence.
6. Lan wishes she _________a long vacation.
A. has B. had C. have D. having
7. He saw that film _________7.00 p.m _________Sunday.
A. on-from B. in-at C. at-at D. at-on
8. You like watching sports, _________, Peter?
A. do you B. aren’t you C. don’t you D. doesn’t he
9. You shouldn’t eat_________. It’s not good for your health.
A. quick B. quickly C. fastly D. slow
10. Minh got wet _________he forgot his umbrella.
A. so B. because C. and D. therefore
11. The girl _________is standing near the window is my sister.
A. who B. when C. where D. in which
12. We _________Nam since he left school.
A. met B. meet C. meeting D. haven’t met
13. Do you mind_________me home?
A. taking B. take C. took D. to take
14. This building_________in 1980.
A. built B. builds C. was built D. is built
15. She asked me_________ at English.
A. if I was good B. if was I good C. if I good D. if I am good
16. If you_________your passport, you will be in trouble.
A. lost B. lose C. would lose D. losing
17. What’s the name of the man_________gave us a gift?
A. he B. which C. who D. whose
18. The librarian asked us_________so much noise.
A. not to make B. no make C. not making D. don’t make

19. We have lived in this flat_________five years.
A. ago B. for C. since D. already
20. I really enjoyed the disco. It was great, _________?
A. isn’t it B. is it C. wasn’t it D. weren’t it

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

•Mïn•Armÿ-Blïnk

15 tháng 6 2019 lúc 10:47

Choose the word whose underlined part is pronounced differently from the others. 1. A. thank B. they C. these D. than2. A. walks B. cups C. students D. pens3. A. talked B. watched C. lived D. stopped4. A. stream B. leather C. cream D. dream5. A. striped B. slice C. diet D. recipeChoose the best answer from the four options given (A, B,C, or D) to complete each sentence. 6. Lan wishes she _________a long vacation.A. has B. had C. have D. having7. He saw that film _________7.00 p.m _________Sunday...

Đọc tiếp

Choose the word whose underlined part is pronounced differently from the others.
1. A. thank B. they C. these D. than
2. A. walks B. cups C. students D. pens
3. A. talked B. watched C. lived D. stopped
4. A. stream B. leather C. cream D. dream
5. A. striped B. slice C. diet D. recipe

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence.
6. Lan wishes she _________a long vacation.
A. has B. had C. have D. having
7. He saw that film _________7.00 p.m _________Sunday.
A. on-from B. in-at C. at-at D. at-on
8. You like watching sports, _________, Peter?
A. do you B. aren’t you C. don’t you D. doesn’t he
9. You shouldn’t eat_________. It’s not good for your health.
A. quick B. quickly C. fastly D. slow
10. Minh got wet _________he forgot his umbrella.
A. so B. because C. and D. therefore
11. The girl _________is standing near the window is my sister.
A. who B. when C. where D. in which
12. We _________Nam since he left school.
A. met B. meet C. meeting D. haven’t met
13. Do you mind_________me home?
A. taking B. take C. took D. to take
14. This building_________in 1980.
A. built B. builds C. was built D. is built
15. She asked me_________ at English.
A. if I was good B. if was I good C. if I good D. if I am good
16. If you_________your passport, you will be in trouble.
A. lost B. lose C. would lose D. losing
17. What’s the name of the man_________gave us a gift?
A. he B. which C. who D. whose
18. The librarian asked us_________so much noise.
A. not to make B. no make C. not making D. don’t make

19. We have lived in this flat_________five years.
A. ago B. for C. since D. already
20. I really enjoyed the disco. It was great, _________?
A. isn’t it B. is it C. wasn’t it D. weren’t it

Nhanh nhé ! Tối nay , tớ học thêm rồi !

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

•Mïn•Armÿ-Blïnk

15 tháng 6 2019 lúc 10:49

Choose the word whose underlined part is pronounced differently from the others. 1. A. thank B. they C. these D. than2. A. walks B. cups C. students D. pens3. A. talked B. watched C. lived D. stopped4. A. stream B. leather C. cream D. dream5. A. striped B. slice C. diet D. recipeChoose the best answer from the four options given (A, B,C, or D) to complete each sentence. 6. Lan wishes she _________a long vacation.A. has B. had C. have D. having7. He saw that film _________7.00 p.m _________Sunday...

Đọc tiếp

Choose the word whose underlined part is pronounced differently from the others.
1. A. thank B. they C. these D. than
2. A. walks B. cups C. students D. pens
3. A. talked B. watched C. lived D. stopped
4. A. stream B. leather C. cream D. dream
5. A. striped B. slice C. diet D. recipe

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence.
6. Lan wishes she _________a long vacation.
A. has B. had C. have D. having
7. He saw that film _________7.00 p.m _________Sunday.
A. on-from B. in-at C. at-at D. at-on
8. You like watching sports, _________, Peter?
A. do you B. aren’t you C. don’t you D. doesn’t he
9. You shouldn’t eat_________. It’s not good for your health.
A. quick B. quickly C. fastly D. slow
10. Minh got wet _________he forgot his umbrella.
A. so B. because C. and D. therefore
11. The girl _________is standing near the window is my sister.
A. who B. when C. where D. in which
12. We _________Nam since he left school.
A. met B. meet C. meeting D. haven’t met
13. Do you mind_________me home?
A. taking B. take C. took D. to take
14. This building_________in 1980.
A. built B. builds C. was built D. is built
15. She asked me_________ at English.
A. if I was good B. if was I good C. if I good D. if I am good
16. If you_________your passport, you will be in trouble.
A. lost B. lose C. would lose D. losing
17. What’s the name of the man_________gave us a gift?
A. he B. which C. who D. whose
18. The librarian asked us_________so much noise.
A. not to make B. no make C. not making D. don’t make

19. We have lived in this flat_________five years.
A. ago B. for C. since D. already
20. I really enjoyed the disco. It was great, _________?
A. isn’t it B. is it C. wasn’t it D. weren’t it

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

tamanh nguyen

10 tháng 12 2021 lúc 10:23

5........ espects of learning English do you find the most difficult?WhereWhatWhenWhy6.Choose the sentence marked A ,B ,C or D that has the same meaning as the first.“I’m having a wonderful time here.” She said.She said she is having a wonderful time there.She said I am having a wonderful time here.She said I was having a wonderful time here.She said she was having a wonderful time there.7.Choose the letter A, B, C or D to indicate the underlined part that needs correction in the following quest...

Đọc tiếp

5........ espects of learning English do you find the most difficult?

Where

What

When

Why

6.Choose the sentence marked A ,B ,C or D that has the same meaning as the first.

“I’m having a wonderful time here.” She said.

She said she is having a wonderful time there.

She said I am having a wonderful time here.

She said I was having a wonderful time here.

She said she was having a wonderful time there.

7.Choose the letter A, B, C or D to indicate the underlined part that needs correction in the following question.

I disagree (A) because we can’t practice (B) speak English (C) with native (D) speakers.

D

B

A

C

8.Have you ........................ your exam, Lan?

to finish

finishes

finish

finished

9.If you want to attend the course, you must pass the ............. examination.

writing

written

write

wrote

10.I am interested in ....................... English and I would like some .................... about your school.

learning/ informations

learn/ information

learn/ informations

learning/ information

Xem chi tiết

Lớp 9 Tiếng anh

Hoàng Mạnh Cường

18 tháng 9 2021 lúc 18:54

1) I haven’t seen Mike………he gave me his calculator.A. since B. for C. until D. before2) …….it is raining, he still waits for her.A. If B. Unless C. Although D. After3) ………John has a headache, he has to take an aspirin.A. So B. As long as C. In order to D. Because4) She had left…….we came.A. when B. by the time C. while D. since5) I moved to the first row……I could see better.A. such B. so C. so that D. such that6) He works hard………help his wife.A. in order that B. in order to C. so as that D. so t...

Đọc tiếp

1) I haven’t seen Mike………he gave me his calculator.

A. since B. for C. until D. before

2) …….it is raining, he still waits for her.

A. If B. Unless C. Although D. After

3) ………John has a headache, he has to take an aspirin.

A. So B. As long as C. In order to D. Because

4) She had left…….we came.

A. when B. by the time C. while D. since

5) I moved to the first row……I could see better.

A. such B. so C. so that D. such that

6) He works hard………help his wife.

A. in order that B. in order to C. so as that D. so that

7) Look! She is wearing beautiful dress.

Yup. She always wears……clothes.

A. such lovely B. so lovely C. such a lovely D. as lovely as

8) ……..rain or snow, there are always many people at this concert.

A. although B. since C. despite D. despite of

9) I never bring along rain coat…….it’s raining heavily.

A. unless B. if C. therfore D. so as to

10) I got a new watch……I could do the exam on time.

A. although B. till C. since D. so that

11.If you want to join this club, you must_______ this application form.

a. make up b. write down c. do up d. fill in

12. The water company will have to _______ off water supplies while repairs to the pipes

are carried out.

a. take b. cut c. set d. break

13. Come_______, children! Get your coats on or you'll be late for school.

a. along b. to c. across d. over

14. She tried to prevent the dog_______ running into the road.

a. to b. for c. from d. against

15. The doctor told him to keep_______ sweets and chocolate to lose weight.

a. at b. up c. back d. off

16. Tom was slow to catch_______, but gradually he began to understand.

a. in b. on c. away d. out

17. I haven’t time to speak to him now, you'll have to put him_______

a. off c. back c. aside d. away

18. You know I'll always stand_______ you if you are in trouble.

a. for b. up c. by d. with

19. I disapprove_______ people smoking in public places.

a. on b. at c. with d. of

20. She found it is hard to _______ up to the fact that she would never be famous.

a. come b. face c. get d. keep

21. For the first few minutes she was leading the race, then she began to fall_______

a. out b. through c. back d. off

22. The job offer was too good for him to turn_______

a. down b. out c. off d. away

23. His son's death was a terrible shock and it took him a long time to _______ it.

a. get round b. come through c. go over d. get over

24. Please come_______ and see us some time-you're always welcome.

a. to b. round c. about d. away

25. She put _______ speaking to him as long as possible.

a. over b. away c. off d. back

26. He filled in the necessary forms and _______ for the job.

a. appealed b. asked c. requested d. applied

27. She went _______ a bad cold just before Christmas.

a. down with b. in for c. over d. through

28. They had never come_______ such a beautiful little village before.

a. at b. across c. off d. long

29. When the tenants failed to pay their bills, the authorities decided to cut_______ the gas

supply to the flats.

a. out b. down c. off d. across

30. The doctor advised me not to take_______ so much work in future.

a. to b. over c. after d. On

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

Pink Pig

19 tháng 4 2022 lúc 16:34

A. Circle the word whose underlined part is pronounced differently from that of the othersB. Find the word A, B, C, or D which has different stress pattern in line

Đọc tiếp

A. Circle the word whose underlined part is pronounced differently from that of the others

Đề thi vào lớp 10 môn Tiếng Anh năm 2022 cực hay có đáp án (Đề 2)

B. Find the word A, B, C, or D which has different stress pattern in line

Đề thi vào lớp 10 môn Tiếng Anh năm 2022 cực hay có đáp án (Đề 2)

Xem chi tiết

Lớp 9 Tiếng anh

khietnhu

25 tháng 12 2021 lúc 18:00

13. You don’t use the Internet very often,________ ? A. are you B. haven’t you C. don’t you D. do you14. He thinks that ________ on the Internet is a waste of time. A. chat B. chatting C. chater D. to chat15. She said I _________ learn harder _________ pass the exam. A. had/ in order to B. should/ so as to C. must/ in order D. will/ so as to16. He told me that he wasn’t ________ about the next meeting. A. excite B. exciting C. excitement D. excited17. Everyone must take part in _________ defores...

Đọc tiếp

13. You don’t use the Internet very often,________ ? A. are you B. haven’t you C. don’t you D. do you

14. He thinks that ________ on the Internet is a waste of time. A. chat B. chatting C. chater D. to chat

15. She said I _________ learn harder _________ pass the exam. A. had/ in order to B. should/ so as to C. must/ in order D. will/ so as to

16. He told me that he wasn’t ________ about the next meeting. A. excite B. exciting C. excitement D. excited

17. Everyone must take part in _________ deforestation. A. prevent B. to prevent C. preventing D. prevented

18. There is a football match ............. 6 pm and 8pm. A. at B. between C. from D. after

19. They are ........... by about 640 km of the sea. A. separated B. separate C. separately D. separating

20. How about ............... to the exhibition ? A. going B. go C. goes D. to go

Xem chi tiết

Lớp 9 Tiếng anh

•Mïn•Armÿ-Blïnk

15 tháng 6 2019 lúc 11:05

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence. 6. Lan wishes she _________a long vacation.A. has B. had C. have D. having7. He saw that film _________7.00 p.m _________Sunday. A. on-from B. in-at C. at-at D. at-on8. You like watching sports, _________, Peter? A. do you B. aren’t you C. don’t you D. doesn’t he9. You shouldn’t eat_________. It’s not good for your health. A. quick B. quickly C. fastly D. slow10. Minh got wet _________he forgot his umbre...

Đọc tiếp

Choose the best answer from the four options given (A, B,C, or D) to complete each sentence.
6. Lan wishes she _________a long vacation.
A. has B. had C. have D. having

7. He saw that film _________7.00 p.m _________Sunday.
A. on-from B. in-at C. at-at D. at-on

8. You like watching sports, _________, Peter?
A. do you B. aren’t you C. don’t you D. doesn’t he

9. You shouldn’t eat_________. It’s not good for your health.
A. quick B. quickly C. fastly D. slow

10. Minh got wet _________he forgot his umbrella.
A. so B. because C. and D. therefore

Xem chi tiết

Lớp 9 Tiếng anh Câu hỏi của OLM

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)