Choose the best answer A, B, C, or D to complete each sentence (1.5 pts)1. I love her painting because she is very …….. in using color.careless B. creative C. beautiful D. rich2. You can avoi...

Choose the best answer A, B, C, or D to complete each sentence (1.5 pts)1. I love her painting because she is very …….. in using color.careless B. creative C. beautiful D. rich2. You can avoid some diseases by ………. yourself clean.taking B. looking C. doing D. keeping3. She isn’t good at drawing, and her brother isn’t, ……….too B. neither C. either D. so4. We have no salt left. Let’s go shopping and buy ……….some B. any C. one D. two5. I ………. blood twice, and ………. presents to sick children at the hospital recently.donate/ gave B. am donating/ give C. have donated/ have given D. have donated/ gave6. Mary: “Oh, no. I’m putting on weight.” - Susan: “ ……….”Do more exercise. B. It’s all right. C. Eat more meat. D. Wash your hands more often.Câu trả lời: Choose the best answer A, B, C, or D to complete each sentence (1.5 pts)1. I love her painting because she is very …….. in using color.careless B. creative C. beautiful D. rich2. You can avoid some diseases by ………. yourself clean.taking B. looking C. doing D. keeping3. She isn’t good at drawing, and her brother isn’t, ……….too B. neither C. either D. so4. We have no salt left. Let’s go shopping and buy ……….some B. any C. one D. two5. I ………. blood twice, and ………. presents to sick children at the hospital recently.donate/ gave B. am donating/ give C. have donated/ have given D. have donated/ gave6. Mary: “Oh, no. I’m putting on weight.” - Susan: “ ……….”Do more exercise. B. It’s all right. C. Eat more meat. D. Wash your hands more often.

1-B2-D3-B4-C5-A6-ACâu trả lời: 1-B2-D3-B4-C5-A6-A

Choose the best answer A, B, C, or D to complete each sentence (1.5 pts)1. I love her painting because she is very …….....

Hãy tham gia nhóm Học sinh Hoc24OLM

Dương Nhi

18 tháng 7 2019 lúc 10:11

11. Volunteering is special __________ me because i can help others. A. to B. with C. for D. at12. Let’s collect and __________ warm clothes to homeless children in our city. A. give away B. give back C. take off D. put on13. We __________ to Ha Noi several times, but last summer we __________ there by train. A. flew – went C. has flown – went B. have flown – have gone D. have flown – went14. I __________ blood twice, and __________ presents to sick children in the hospital recently. A. donate –...

Đọc tiếp

11. Volunteering is special __________ me because i can help others. A. to B. with C. for D. at

12. Let’s collect and __________ warm clothes to homeless children in our city. A. give away B. give back C. take off D. put on

13. We __________ to Ha Noi several times, but last summer we __________ there by train. A. flew – went C. has flown – went B. have flown – have gone D. have flown – went

14. I __________ blood twice, and __________ presents to sick children in the hospital recently. A. donate – give C. have donated – have given B. donated – gave D. have donated – gave

15. To help people in remote areas, we can __________ transportation, such as giving rides to the elderly

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Phạm Khánh Nam

8 tháng 10 2021 lúc 20:31

23. I blood twice, and presents to sick children in the hospital recently.A. donate - give B. donated — gaveC. have donated - have given D. have donated - gave24. Volunteering is special me because I can help others. A. at B. for C. with D. to25. How many novels Charles Dickens ?A. does - write B. have - written C. did - written D. did - write26. We to Ha Noi several times, but last summer we there by train.A. flew - went B. has flown - wentC. have flown - have gone D. have flown - went27.She bl...

Đọc tiếp

23. I blood twice, and presents to sick children in the hospital recently.
A. donate - give B. donated — gave
C. have donated - have given D. have donated - gave
24. Volunteering is special me because I can help others.

A. at B. for C. with D. to
25. How many novels Charles Dickens ?
A. does - write B. have - written C. did - written D. did - write
26. We to Ha Noi several times, but last summer we there by train.
A. flew - went B. has flown - went
C. have flown - have gone D. have flown - went
27.She blood twenty times so far.
A. donates B. has donated C. is donating D. to donate
28. He lectures to foreign tourists about traditional food and games recently .
A. gives B. gave C. have given D. has given
29. They have decided to clean up the neighbourhood it is full of rubbish.
A. so B. but C. although D. because
30. “Have you ever to Sa Pa?”
A. gone B. been C. seen D. visited

Xem chi tiết

Lớp 7 Tiếng anh

Help Me

28 tháng 12 2021 lúc 15:45

6.I blood twice, and presents to sick children in the hospital recently. A. donate - give B. donated — gave C. have donated - have given D. have donated - gave7.How many novels Charles Dickens ? A. does - write B. have - written C. did - written D. did - write8. If you always buy flowers and put them in a vaseto displayin your house, your hobby is ______________ .A. arrange flowers B. a...

Đọc tiếp

6.I blood twice, and presents to sick children in the hospital recently.

A. donate - give B. donated — gave

C. have donated - have given D. have donated - gave

7.How many novels Charles Dickens ?

A. does - write B. have - written C. did - written D. did - write

8. If you always buy flowers and put them in a vaseto displayin your house, your hobby is ______________ .

A. arrange flowers B. arranging flowers C. arranges flowers D. to arrange flowers

9. Eat ______________ junk food. It makes you fat.

A. fewer B. more C. less D. a few

10. How many _________ should I use to make the cake?

a. sugar b. flour c. eggs d. milk

Xem chi tiết

Lớp 7 Tiếng anh

Nguyễn Thị Hương Giang

2 tháng 11 2021 lúc 17:59

III. Choose the correct answers.1. Volunteers can do general such as clean-up project or home repair.A. activities B. things C. labour D. jobs2. My brother and I a white tiger already.A. have seen B. has seen C. see D. are seeing3. I blood twice, and presents to sick children in the hospitalrecently.A. donate - give B. donated - gaveC. have donated - have given D. have donated - gave4. Volunteering is special me because I can help others.A. at B. for C. with D. to5. How many novels Charles Dicke...

Đọc tiếp

III. Choose the correct answers.
1. Volunteers can do general such as clean-up project or home repair.
A. activities B. things C. labour D. jobs
2. My brother and I a white tiger already.
A. have seen B. has seen C. see D. are seeing
3. I blood twice, and presents to sick children in the hospital
recently.
A. donate - give B. donated - gave
C. have donated - have given D. have donated - gave
4. Volunteering is special me because I can help others.
A. at B. for C. with D. to
5. How many novels Charles Dickens ?
A. did - write B. have - written C. did - written D. does - write
6. We to Ha Noi several times, but last summer we by train.
A. flew- went B. has flown – went
C. have flown - have gone D. have flown - went
7. She blood twenty times so far.
A. donates B. has donated C. is donating D. to donate
8. He lectures to foreign tourists about traditional food and games recently.
A. gives B. gave C. have given D. has given
9. They have decided to clean up the neighbourhood it is full of rubbish.
A. so B. but C. although D. because
10. “Have you ever to Sa Pa?
A. arrived B. been C. seen D. visited
11. We came to the remote village and meals for homeless children.
A. cook B. offered C. do D. made
12. You should think of the volunteer activities in your community.
A. taking in B. taking part in C. participating D. making
13. Traditional volunteer activities include moneyfor people in need, cooking and
giving food.
A. rising B. raising C. getting D. taking
14. You can help young children by them to do homework before or after
school.
A. doing B. offering C. teaching D. helping
15. Let’s collect and warm clothes to homeless children in our city.
A. give away B. give back C. take off D. put on
16. To help people in remote areas, we can transportation, such as giving
rides to the elderly.
A. give B. bring C. provide D. donate
17. Let’s help the street children because they have bad .
A. live B. living conditions
C. ways of life D. earnings
18. They have decided to ride to work it is good for their health and the
environment.
A. so B. but C. although D. because
19. Our school has a programme to children from poor families in Ho Chi
Minh City.
A. ask B. offer C. tutor D. volunteer
20. Americans the tradition of volunteering and helping one another since the
early days of the country.
A. have had B. has had C. had D. to have

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Bạch Đăng Tài

10 tháng 9 2021 lúc 16:31

BÀI TẬP VỀ NHÀ: HỌC BỔ TRỢ BUỔI 1 Exercise 5: Complete the sentences, using the -ING form of the verbs in the box. 1. Do you fancy _____________ out this evening? 2. I like _____________ tennis at the weekend. 3. Jim enjoys _____________ photos of himself and his friends. 4. Ann’s father doesn’t like _____________ ice hockey on TV. 5. My mother hates _____________, so we eat out every often. 6. Do you like _____________ pottery? 7. She dislikes _____________ her room every day. 8. My niece loves...

Đọc tiếp

BÀI TẬP VỀ NHÀ: HỌC BỔ TRỢ BUỔI 1 Exercise 5: Complete the sentences, using the -ING form of the verbs in the box. 1. Do you fancy _____________ out this evening? 2. I like _____________ tennis at the weekend. 3. Jim enjoys _____________ photos of himself and his friends. 4. Ann’s father doesn’t like _____________ ice hockey on TV. 5. My mother hates _____________, so we eat out every often. 6. Do you like _____________ pottery? 7. She dislikes _____________ her room every day. 8. My niece loves _____________ adventure books. 9. I can’t stand _____________ for buses in the rain. 10.They detest _____________, so they usually travel by train or coach. Exercise 6: Each sentence has one mistake. Find and correct it. 1. I find carve eggshells boring because it takes a lot of time to complete one shell. A B C D 2. My brother not goes to class to learn how to paint. A B C D 3. I take up my hobby when I came back home from the Art Gallery. A B C D 4. I think playing volleyball interest because it is a team game. A B C D 5. In my opinion, more people play monopoly in the future. A B C D Exercise 7: Fill each blank with a word/phrase in the box. bottles photos horse-riding gymnastics the guitar camping dolls fishing gardening painting 1. I always take a lot of __________ when I go on holidays. 2. A: Can you play __________? B: No, I can’t, but I can play the piano. 3. My brother’s hobby is watching __________, he likes horses very much. 4. Her brother likes collecting __________, especially glasses. 5. I like drawing very much. My hobby is __________. 6. My sister likes collecting __________. Now she has more than 100. 7. Her hobby is __________. She plants many beautiful flower trees in her garden. 8. My father likes __________. He often goes to the lakes or rivers when he has free time. 9. When we have some days off, my close friends and I often go __________. 10. My sister likes doing __________. She looks very fit. tidy fly take watch cook make wait read play go

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Nữ Hoàng

18 tháng 4 2019 lúc 12:26

Test 2I. Choose the best one to complete the sentences. 1. I don’t have a sister. My friend doesn’t have a sister, _________.A. so B. too C. either D. neither2. What do you do _______ your free time?A. in B. on C. at D. for3. There aren’t many programs ________ children.A. for B. on C. to D. with4. Can you tell us_______ you visited?A. What places B. place C. How D. Where places 5. What are the _______ of the common cold? A. signs B. symptoms C. warning D. notice6. Scuba-diving became a _____ sp...

Đọc tiếp

Test 2

I. Choose the best one to complete the sentences.
1. I don’t have a sister. My friend doesn’t have a sister, _________.
A. so B. too C. either D. neither
2. What do you do _______ your free time?
A. in B. on C. at D. for
3. There aren’t many programs ________ children.
A. for B. on C. to D. with
4. Can you tell us_______ you visited?
A. What places B. place C. How D. Where places
5. What are the _______ of the common cold?
A. signs B. symptoms C. warning D. notice
6. Scuba-diving became a _____ sport after the invention of special breathing equipment.
A. popular B. healthy C. boring D. free
7. ______ you do, your cold will last for a few days and then disappear.
A. Who B. Whenever C. Medicine D. Whatever
8. Would you like to have dinner at my house tonight? - __________________ .
A. Yes, I’d love to B. Yes, I like C. Yes, I’d like D. Yes, I do
9. Would you like a cup of tea? - ________________.
A. No, thank you B. Here you are C. No, please D. No problem
10. Life is more comfortable, but neighbors don’t ______ each other as well as they did in the past.
A. take B.spend C. catch D. know
II. Supply the correct form or tense of the verbs in parentheses.
5. The numbers of participants________ every week. (increase)
6. We must remember________ sensibly. (eat)
7. Yesterday, Hoa and her aunt ______ at a fruit stall. (stop)
8. A “balanced diet” means you eat a variety of foods without______ too much of anything.(eat)
III. Supply the correct form of the words in parentheses.
1. Last year there was a district walking _________ for school children. (compete)
2. We must wash vegetables carefully because they can be ________. (dirt)
3. He plays soccer very __________. (skillful)
4. I’m going to see a _______ movie with my parents. (detect)
IV. Choose the underlined part which needs correcting.
1. You should take regular exercise to stay healthily.
A B C D
2. The weather is terrible, you have stay indoors.
A B C D
V. Read the passage. Then decide whether the statements are True (T) or False (F). (1pt)

Yesterday, Mai and her mother went to the market. They wanted to buy some meat, vegetables and fruit for their dinner. First, they went to the meat stall. There was a good selection of meat on the stall: chicken, pork and beef. Mai doesn’t like pork and her mother doesn’t, either. So they bought some beef. Next they went to the vegetable stall. They bought some spinach and cucumbers. Finally, they stopped the fruit stall. They bought a papaya, a pineapple and some oranges.

Mai and her aunt went to the market. ______They went to the meat stall, the vegetable stall and the fruit stall. ______There was a good selection of meat on the stall. ______They bought a papaya, a pineapple and an orange. ______

VI. Choose the best one to complete the passage. (2pts)
Every year millions of people catch the common cold. It isn’t a serious (1) ________, but a lot of money is spent on different kinds of cold (2) _________every year. This medicine can (3)________ the symptoms . That is, it can make you cough less and stop your (4) _________ nose for a while. However, it can’t cure (5) _________cold. Although there is no cure (6) __________ the common cold (7) _________ no medicine to prevent it, people have different kinds of ideas about (8) _________ to prevent and treat cold.
1. A. fever B.contest C. headache D. disease
2. A. medicine B. temperarure C. amount D. surgery
3. A. relieved B.relieving C. to relieve D. relieve
4. A. runny B. ran C. runner D. run
5. A.their B. my C. your D. her
6. A. of B. at C. for D.in
7. A. since B. but C. so D. and
8. A. when B. when C. how D. what

V. Rewrite the sentences, beginning with the words given. (2pts)
1.Tuan and I don’t like durians.
à Tuan doesn’t like durians and _________________
2. How tall is he?
àWhat’s____________________________________?
3.She is a bad tennis player.
à She plays _________________________________
4.Would you like cold drinks?
à Do you ___________________________________

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Nguyễn Tuấn Anh

3 tháng 1 2022 lúc 10:52

Question 17 : The health from that diet expert is that you shouldeat less junk food and count your calories if you are becoming fat.A. advices B. ideas C. tip D. tipsQuestion 18: Tom doesn’t know why many students pay a to the Temple of Literaturebefore their exam.A. visit B. holiday C. walk D. tripQuestion 19: Let’s help the sweet children because they have bad .A. live B. living conditions C. ways of life D. earningsQuestion 20 :She can play some musical_____ such as guitar, piano or cello.A....

Đọc tiếp

Question 17 : The health from that diet expert is that you should
eat less junk food and count your calories if you are becoming fat.
A. advices B. ideas C. tip D. tips
Question 18: Tom doesn’t know why many students pay a to the Temple of Literature

before their exam.
A. visit B. holiday C. walk D. trip
Question 19: Let’s help the sweet children because they have bad .
A. live B. living conditions C. ways of life D. earnings
Question 20 :She can play some musical_____ such as guitar, piano or cello.
A. instruments B. paintbrushes C. opera D. microphones
Question 21 : The eel soup that your father has just cooked tastes very .
A. well B. best C. healthy D. delicious
Question 22 : What __do I need to cook an omelette?
A. food B. material C. menu D. ingredients
Question 23 : A is a small meal that you eat when you are in a hurry.
A. snack B. fast food C. breakfast D. lunch
Question 24. is hot food that is quick to cook, and is served very quickly in a
restaurant.
A. Hot food B. Fast food C. Sandwiches D. Hamburgers
Question 25. water should I put into the glass?
A. How B. How much C. How many D. What
Question 26 : Sorry! I’m busy tonight. I have an ……….. with my doctor at 7 o’clock.
A. opportunity B. occasion C. appointment D. activity
Question 27 : How many novels Charles Dickens ?
A. did - write B. have - written C. did - written D. does - write
Question 28 :Mai and her friend_______ a sum of money to the community centre to help
disabled children last month.
A. have donated B. donated C. has donated D. are donating
Question 29 : The teacher_______ his students to hand in their assignments this morning.
A. asked B. has asked C. will ask D. is asking
Question 30. We_______ a project to improve the living conditions for homeless people two
days ago. They_______ in difficult conditions for a long time.
A. attended/ lived B. have attended/ lived
C. attended/ have lived D. have attended/ have lived
Question 31 : Her paintbrushes are so old. Hers are ______ yours.
A. as not new as B. not as new like
C. not as new as D. not as new than
Question 32. It’s a musical instrument made_____brass, somewhat like a cornet and with a
similar compass.
A. in B. from C. of D. by

Question 33: There isn’t_____for dinner, so I have to go to the market.
A. some left B. any leaning C. some leaving D. any left
Question 34: He_____ as a photographer. He likes ______ photos very much.
A. plays/drawing B. writes/taking
C. works/taking D. works/drawing
Question 35: Some people think the band's rock and roll songs are very lively. They are
_______ some of their gentle old songs.
A. the same as B. different from C. not as far as D. as much as
Question 36. I love dancing, and my sister loves it, ________.
A. so B.too C.neither D. either
Question 37. He can't play the saxophone, and his brother can't __________ .
A. either B.neither C. so D. too
Question 38. No one else in the class plays the guitar John.
A. as well B. as far as C. so well as D. as soon as
Question 39. The Brit School is the most famous arts school in Britain.
A. performing B. performance C. perform D. performed
Question 40. Jane is not her brother.
A. more intelligent as B. intelligent as
C. so intelligent as D. so intelligent that

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Bảo Nguyễn

12 tháng 11 2021 lúc 7:58

I. Choose and underline the best answer. 1. She ___________ blood twenty times so far. A. donates B. has donated C. is donating D. to donate 2. Have you ever ___________ to Sapa? A. seen B. been C. visited D. gone 3. They have decided to clean up the neighbourhood ___________ it is full of rubbish. A. so B. but C. because D. although 4. How many novels ___________ Charles Dickens ___________ ? A. does – write B. did – write C. did written D. have – written...

Đọc tiếp

I. Choose and underline the best answer.

1. She ___________ blood twenty times so far.

A. donates B. has donated C. is donating D. to donate

2. Have you ever ___________ to Sapa?

A. seen B. been C. visited D. gone

3. They have decided to clean up the neighbourhood ___________ it is full of rubbish.

A. so B. but C. because D. although

4. How many novels ___________ Charles Dickens ___________ ?

A. does – write B. did – write C. did written D. have – written

5. We___________ to Ha Noi several times, but last summer we ___________ there by train.

A. flew – went C. has flown – went

B. have flown – have gone D. have flown – went

6. My brother and I ________a white tiger already.

A. see B. to have C. have seen D. has seen

7. My dad enjoys ________ his bike to work. 

A. to ride B. ride C. rides D. riding

8. I love cooking, _________ my sister doesn’t.

A. because B. so C. but D. and

9. I ……………. Nha Trang when I was a child.

A. visit B. visited C. will visit D. have visited

10. He …………… to the USA several times.

A. is B. was C. will be D. has been

II. Complete each sentence with the correct tense or form of the verb in brackets.

1. Nam always (have) ____________ dinner with his father at home.

2. John and Nick (work) _______________ for this company next summer.

3. We (see) _______________the film Titanic three times.

4. _____________ she (clean) ___________ her room yesterday?

III. Fill in the blank with ONE correct word from the box.

so hobby of are gardening help

There (1) ____________ many reasons why it is important to have a hobby. First (2) __________ all, a hobby can be a remedy for your tiredness. It will always give you pleasure and (3) _____ you relax. Even if you just spend a little time enjoying your (4) ____________, you can see the difference in your spirit. Second, some hobbies can also give you financially. Many old people enjoy (5) ___________. They grow a lot of trees and vegetables, (6) ___________they can sell them for some money.

IV. Read the text and answer the questions.

FAMILY VOLUNTEER DAY

The first reason why many families do volunteer work is that they feel satisfied and proud. The feeling of fulfillment comes from helping the community and other people. In addition, volunteering is a great way for families to have fun and feel closer. But many people say they don’t have time to volunteer because they have to work and take care of their families. If that’s the case, try rethinking some of your free time as a family. You could select just one or two projects a year and make them a family tradition. For instance, your family can make and donate gift baskets for the old homeless people on holidays. Your family can also spend only one Saturday morning a month collecting rubbish in your neighborhood.

Answer the questions:

1. How do people feel when they do volunteer work?

________________________________________________________

2. Why do some people lack time to volunteer?

________________________________________________________

3. How can your family help the old homeless people?

________________________________________________________

4. Is collecting rubbish in the neighborhood an example of volunteer work?

________________________________________________________

V. Do as directed.

1. The Japanese eat healthily. They live for a long time. (Use “so” to combine)

-________________________________________________________

(Use “Because” to combine)

-________________________________________________________

3. We like her, because _____________________________________(Complete the sentence)

4. Hung started to work/ working for this company 5 years ago. (Rewrite the sentence)

- Hung ______________________________________________ 3 years.

5. find/ creative/ I /making models/interesting/ and.

(Rearrange the words to make a correct sentence)

________________________________________________________

6. My brother/ not like/ ice-skating/ because/ think/ it/ dangerous.

(Complete the sentence)

________________________________________________________

7. I think that learning English is important.

I find ___________________________________________________

8. I am interested in watching TV in the evening.

I enjoy __________________________________________________

Xem chi tiết

Lớp 7 Tiếng anh

Lê Khánh Ngọc

12 tháng 3 2020 lúc 18:33

IV. Choose the best answer (A, B, C or D).1. Do you believe that eating carrots helps you see at night.A. most B. less C. the most D. much more2. Don’t eat that type of fish, you may have a/an.............................A. energy B. sick C. sore D. allergy3. The seafood i ate this morning makes me feel all over.A. well B. weak C. itchy D. running4. We should try to keep everything around us clean and then flu with find it...........to spread.A. difficult B. difficulty C. difficulties...

Đọc tiếp

IV. Choose the best answer (A, B, C or D).
1. Do you believe that eating carrots helps you see at night.
A. most B. less C. the most D. much more
2. Don’t eat that type of fish, you may have a/an.............................
A. energy B. sick C. sore D. allergy
3. The seafood i ate this morning makes me feel all over.
A. well B. weak C. itchy D. running
4. We should try to keep everything around us clean and then flu with find it...........to spread.
A. difficult B. difficulty C. difficulties D. like
5. The health from that diet expert is that die expert is that you should eat less
junk food and count your calories if you are becoming fat.
A. advices B. ideas C. tip D. tips
6. Be careful with you eat and drink.
A. who B. what C. that D. this
7. Have a health and you can enjoy your life.
A. lives B. lifestyle C. lifeline D. lively
5
8. Eating a lot of junk food may lead to your .
A. fitness B. obesity C. pain D. stomachache
9. We should follow the activities from doctors and health ...............in order to keep fit.
A. workers B. people C. experts D. managers
10. You can avoid some diseases by yourself clean.
A. taking B. keeping C. bringing D. looking
11. We should play sports or do exercise in order to stay in .
A. look B. health C. fit D. shape
12. The Japanese eat a lot of fish instead of meat ......................they stay more healthy.
A. because B. so C. although D. but
13. I forgot to wear a sun hat today and i got a .
A. earache B. backache C. headache D. stomachache
14. We need to spend less time computer games.
A. play B. to play C. playing D. to playing
15. When you have a temperature, you should drink more water and rest.....................
A. more B. most C. less D. all
16. Rob eats a lot of fast food and he on a lot of weight.
A. takes B. spends C. puts D. bring
17. When you have flu, you may have a cough and a nose.
A. running B. runny C. noisy D. flowing
18. Do more exercises eat more fruits and vegetables.
A. and B. or C. but D. so
19. Watching too much tv is not good you or your eyes.
A. at B. for C. with D. to
20. After working on a computers for long hours, you should .....................your eyes and relax.
A. wake B. rest C. sleep D. sleep in

Xem chi tiết

Lớp 7 Tiếng anh Câu hỏi của OLM

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)