. Chia động từ trong các câu dưới đây ở dạng thích hợp (10p)1. I (go) _____ to school now.2. It often (rain)_____ in spring.3. My brother (watch)_____ his favorite movie next week.4. ...

1. am going2. rains3. will watch4. doesn't wear5. has6. aren't7. won't go8. Are...taking9. Will she visit10. areCâu trả lời: 1. am going2. rains3. will watch4. doesn't wear5. has6. aren't7. won't go8. Are...taking9. Will she visit10. are

. Chia động từ trong các câu dưới đây ở dạng thích hợp (10p)1. I (go) _____ to school now.2. It often (rain)__...

Hãy tham gia nhóm Học sinh Hoc24OLM

Ngô Minh Vy

3 tháng 6 2019 lúc 17:00

Task1: Give the correct form of the verb in brackets. 1. Ưhat....you (do) .... next Sunday? 2. He usually......(jog) in the morning. 3. My brother.........(watch) TV at the moment. 4. Hoa...............(not go) fishing in the winter. 5. Her sister.........(skip) now. 6. There................(not be) any water in the bottle. 7. I can...........(speak) English. 8. She............,(visit) her aunt next week. 9.At the moment, the children...........(play) soccer in the garden. 10....

Đọc tiếp

Task1: Give the correct form of the verb in brackets. 1. Ưhat....you (do) .... next Sunday? 2. He usually......(jog) in the morning. 3. My brother.........(watch) TV at the moment. 4. Hoa...............(not go) fishing in the winter. 5. Her sister.........(skip) now. 6. There................(not be) any water in the bottle. 7. I can...........(speak) English. 8. She............,(visit) her aunt next week. 9.At the moment, the children...........(play) soccer in the garden. 10. She......,,(go) camping tomorrow. 11. My sister always (wear) nice clothes for work. Today she (wear)........... a blue jacket and shirt. 12. Why you(buy).......so much food? -Because we(have)...........a party tonight. 13. That film (come).......to the local cinema next week. You (want).............to see it? 14.It(not rain).........right now.The sun shine........... and the sky is blue. 15. Alice (not take)............the bus to school everyday. 16.She (go)...........in summer.It (rain)...........now. 17.Bad students never (work)..............hard. 18. It often (rain)..........in summer.It (rain)......now. 19. He (not have)..............any car. 20. What you often (do)....in the morning. 21. She and I (like)........(watch).........TV very much. 22.Where she (go) ........? -She (go)..........to the theatre. 23.Mai (go).........to school in the morning.She (not go).......to school in the afternoon. 24. What ... she (do) .......on the weekend? She (go)........camping with her friends. 25. They (play)...........volleyball in the school yard now. 26. How often .......he (go) .....swimming? Twice a week

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

bạch trí dũng

28 tháng 3 2020 lúc 17:22

*Supply the correct forms and tenses of these verbs:1. She (go) to school everyday.2. Bad students never (work) hard.3. It often (rain) in summer. It (rain) now.4. He (not have) any car.5. What you often (do) in the morning?6. She and I (like) (watching) TV very much.7. Where she (go)? – she (go) to the theatre.*Supply the correct forms and tenses of these verbs:1. My parents (go)………………………….to visit my grandfather weekly.2. Le Tam (want) ……………..………to be a teacher after he (leave)…………………….... sch...

Đọc tiếp

*Supply the correct forms and tenses of these verbs:
1. She (go) to school everyday.
2. Bad students never (work) hard.
3. It often (rain) in summer. It (rain) now.
4. He (not have) any car.
5. What you often (do) in the morning?
6. She and I (like) (watching) TV very much.
7. Where she (go)? – she (go) to the theatre.
*Supply the correct forms and tenses of these verbs:
1. My parents (go)………………………….to visit my grandfather weekly.
2. Le Tam (want) ……………..………to be a teacher after he (leave)…………………….... school.
3. There are lots of gray clouds in the sky. It (rain)……………..…………
4. You (sleep) …………………….…..? Wake up and study your lesson. The exam (come)…
………….……….near.
5. What they (do)………………………….in the living room at the moment? They
(watch)……....................................TV?
- No, they (play)…………………….…..chess.
6. Mary can’t answer the phone now because she (have)…………………………..a bath.
*Supply the correct forms and tenses of these verbs:
1. My mother often (1- go) to the market every morning but she (2- not go) this morning.
2. Where (3- be) your brother?
- He (4-read) in his room.
3. You (5- like) this skirt? I (6- give) it to my daughter for her birthday tomorrow.
4. Look! The plane (7- fly) toward the airport. It (8- land).
*Supply the correct forms and tenses of these verbs:
1. Every evening my father (watch)............................. television. 2. We (not/
read)............................. books after lunch.
3. Tom (be)........................ my friend. He (play)...................... sports everyday.
4. (your students/ play)................................................. soccer every afternoon?
5. Where (your children/ be) ........................................................? - They’re upstairs. They (play)
........................................ video games.
6. What (you/ do)................................... now? - I (unload)........................... the vegetables.
7. (Nam/ work).............................................. in the garden at the moment?
*Supply the correct forms and tenses of these verbs:
1. The sun (set) ………………………………………in the West.
2. It usually (rain) ………………………………in the summer.
3. They (build) …………………………………….
4. Bees (make) …………………………………………honey.
5. They (get) …………………………………on the scale now.
6. The earth (circle) …………………………………the Sun once every 365 days.
7. Rivers usually (flow) ………………………………… to the sea.
8. Don’t worry. I (give) ……………him your message when I (see) …………………… him.
9. Look! Jane (play) ………… the guitar. Hurry up! The bus (come) ………………….
10. I (not talk) ……………………………… to her at present.
11. How often……… she (go) ………… fishing?- She (go) ……………once a year.
12. ................. your friends (be)…… students?-Yes, they (be)..........................
13. .............. the children (play)………… in the park at the moment?
- No, they aren’t. They (learn).................... to play the piano.
14. …………….you (go)………….. to school on Sundays? – Yes, I do.
15. My mother (cook) ……………a meal now. She (cook)…………… everyday.

16. What………… your mother (do)…………… at this time? - She (make)…………a dress.
17. ............. she often (go)……………………… to the cinema every weekend?
18. I don’t know. But she always (go)......................... to the church on Sundays.
19. The students (not be)........................................... in class at present.
20. She always (wash).................................... the dishes after meals.
21. I (do)................... an exercise on the present tenses at this moment and I (think).............. that I (know)
.................... how to use it now.
22. My mother sometimes (buy)....................................... vegetables at this market.
23. It (rain)........................................... much in summer. It (rain)........................................... now.
24. Daisy (cook)......... some food in the kitchen at present. She always (cook).............. in the morning.
*Supply the correct forms and tenses of these verbs:
1. Ba and I (be).............. students. We (go).................. to school in the morning.
2. We (not go)...................... to school on Thursday.
3. Lan (be)................... a student. She (go)................. to school in the afternoon.
4. She (not go).................... to school in the morning.
5. My school (be)........... in the country. There (be).......... 14 classrooms in my school.
6. There (be).......... a bookstore opposite my house.
7. There (be).......... two restaurants near my house.
8. Where (be).......... your father now? - He (take)........................ a shower.
9. My brother (be)............ a policeman. He (work).................. in Ho Chi Minh City.
10. Today he (not work)....................... He (play)....................... tennis with his friends.
11. What (you/do).................................... after school? - I (watch)...................... TV.
12. What (you/do).......................................... now? - I (watch)........................... TV.
13. What (Lan/do)................................. after school? - She (watch)..................... TV.
14. What (Lan/do)....................................... now? - She (watch).......................... TV.
15. My mother (not work)......................... in a hospital. She (work).............. in a clinic.
16. How (your mother / travel)...................................... to work? - She travels by train.
*Supply the correct forms and tenses of these verbs:
1. We to the movie theater by bus now. (go)
2. They _ at school. (be not)
3. What Mr Allen ? (do)
4. He usually TV in the evening. (watch)
5. Can we _ soccer on the streets? (play)
*Supply the correct forms and tenses of these verbs:
1. He ………………………his breakfast at 7 o ,clock. (have)
2. There ………………… many beautiful flowers in my garden. (be)
3. She ………………………………… her bike to school now. (ride)
4. Thu ………………………to school by bus everyday. (go).

giúp mik với mik vội lắm!!!

cảm ơn!! ^^

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

bạch trí dũng

28 tháng 3 2020 lúc 17:15

*Supply the correct forms and tenses of these verbs:1. She (go) to school everyday.2. Bad students never (work) hard.3. It often (rain) in summer. It (rain) now.4. He (not have) any car.5. What you often (do) in the morning?6. She and I (like) (watching) TV very much.7. Where she (go)? – she (go) to the theatre.*Supply the correct forms and tenses of these verbs:1. My parents (go)………………………….to visit my grandfather weekly.2. Le Tam (want) ……………..………to be a teacher after he (leave)…………………….... sch...

Đọc tiếp

*Supply the correct forms and tenses of these verbs:
1. She (go) to school everyday.
2. Bad students never (work) hard.
3. It often (rain) in summer. It (rain) now.
4. He (not have) any car.
5. What you often (do) in the morning?
6. She and I (like) (watching) TV very much.
7. Where she (go)? – she (go) to the theatre.
*Supply the correct forms and tenses of these verbs:
1. My parents (go)………………………….to visit my grandfather weekly.
2. Le Tam (want) ……………..………to be a teacher after he (leave)…………………….... school.
3. There are lots of gray clouds in the sky. It (rain)……………..…………
4. You (sleep) …………………….…..? Wake up and study your lesson. The exam (come)…
………….……….near.
5. What they (do)………………………….in the living room at the moment? They
(watch)……....................................TV?
- No, they (play)…………………….…..chess.
6. Mary can’t answer the phone now because she (have)…………………………..a bath.
*Supply the correct forms and tenses of these verbs:
1. My mother often (1- go) to the market every morning but she (2- not go) this morning.
2. Where (3- be) your brother?
- He (4-read) in his room.
3. You (5- like) this skirt? I (6- give) it to my daughter for her birthday tomorrow.
4. Look! The plane (7- fly) toward the airport. It (8- land).
*Supply the correct forms and tenses of these verbs:
1. Every evening my father (watch)............................. television. 2. We (not/
read)............................. books after lunch.
3. Tom (be)........................ my friend. He (play)...................... sports everyday.
4. (your students/ play)................................................. soccer every afternoon?
5. Where (your children/ be) ........................................................? - They’re upstairs. They (play)
........................................ video games.
6. What (you/ do)................................... now? - I (unload)........................... the vegetables.
7. (Nam/ work).............................................. in the garden at the moment?
*Supply the correct forms and tenses of these verbs:
1. The sun (set) ………………………………………in the West.
2. It usually (rain) ………………………………in the summer.
3. They (build) …………………………………….
4. Bees (make) …………………………………………honey.
5. They (get) …………………………………on the scale now.
6. The earth (circle) …………………………………the Sun once every 365 days.
7. Rivers usually (flow) ………………………………… to the sea.
8. Don’t worry. I (give) ……………him your message when I (see) …………………… him.
9. Look! Jane (play) ………… the guitar. Hurry up! The bus (come) ………………….
10. I (not talk) ……………………………… to her at present.
11. How often……… she (go) ………… fishing?- She (go) ……………once a year.
12. ................. your friends (be)…… students?-Yes, they (be)..........................
13. .............. the children (play)………… in the park at the moment?
- No, they aren’t. They (learn).................... to play the piano.
14. …………….you (go)………….. to school on Sundays? – Yes, I do.
15. My mother (cook) ……………a meal now. She (cook)…………… everyday.

16. What………… your mother (do)…………… at this time? - She (make)…………a dress.
17. ............. she often (go)……………………… to the cinema every weekend?
18. I don’t know. But she always (go)......................... to the church on Sundays.
19. The students (not be)........................................... in class at present.
20. She always (wash).................................... the dishes after meals.
21. I (do)................... an exercise on the present tenses at this moment and I (think).............. that I (know)
.................... how to use it now.
22. My mother sometimes (buy)....................................... vegetables at this market.
23. It (rain)........................................... much in summer. It (rain)........................................... now.
24. Daisy (cook)......... some food in the kitchen at present. She always (cook).............. in the morning.
*Supply the correct forms and tenses of these verbs:
1. Ba and I (be).............. students. We (go).................. to school in the morning.
2. We (not go)...................... to school on Thursday.
3. Lan (be)................... a student. She (go)................. to school in the afternoon.
4. She (not go).................... to school in the morning.
5. My school (be)........... in the country. There (be).......... 14 classrooms in my school.
6. There (be).......... a bookstore opposite my house.
7. There (be).......... two restaurants near my house.
8. Where (be).......... your father now? - He (take)........................ a shower.
9. My brother (be)............ a policeman. He (work).................. in Ho Chi Minh City.
10. Today he (not work)....................... He (play)....................... tennis with his friends.
11. What (you/do).................................... after school? - I (watch)...................... TV.
12. What (you/do).......................................... now? - I (watch)........................... TV.
13. What (Lan/do)................................. after school? - She (watch)..................... TV.
14. What (Lan/do)....................................... now? - She (watch).......................... TV.
15. My mother (not work)......................... in a hospital. She (work).............. in a clinic.
16. How (your mother / travel)...................................... to work? - She travels by train.
*Supply the correct forms and tenses of these verbs:
1. We to the movie theater by bus now. (go)
2. They _ at school. (be not)
3. What Mr Allen ? (do)
4. He usually TV in the evening. (watch)
5. Can we _ soccer on the streets? (play)
*Supply the correct forms and tenses of these verbs:
1. He ………………………his breakfast at 7 o ,clock. (have)
2. There ………………… many beautiful flowers in my garden. (be)
3. She ………………………………… her bike to school now. (ride)
4. Thu ………………………to school by bus everyday. (go).

mik dag vội làm nhanh giúp mik với :(

ai làm trc mik tick!

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

Hien Thanh

25 tháng 3 2018 lúc 23:03

VI . Give the correct tense of the verbs : They want ( walk )__________________ to school. Nam often ( go ) _______________ to the movies on Sundays. She ( do ) ___________________________ aerobics every day. What ____________ he ( do )_________ this weekend ? We ( go ) __________________ to the cinema tonight.. Let’s ( listen ) _________________ to music. He ( read ) __________________ in the living room at present. My friend would likes ( play )_______________________ the guitar His father lik...

Đọc tiếp

VI . Give the correct tense of the verbs : They want ( walk )__________________ to school. Nam often ( go ) _______________ to the movies on Sundays. She ( do ) ___________________________ aerobics every day. What ____________ he ( do )_________ this weekend ? We ( go ) __________________ to the cinema tonight.. Let’s ( listen ) _________________ to music. He ( read ) __________________ in the living room at present. My friend would likes ( play )_______________________ the guitar His father likes ( go ) ________________ jogging. What about ( have ) _____________ a picnic ? I ( stay ) ______________ there for two days when I come there. My mother ( cook ) ______________ in the kitchen now. I ( go ) _______________ to Ha Noi next week. He ( not go ) ________________ often to the movie on Sunday nights. My mother ( give ) _____________ me a new bike next week. Lan always ( go ) ________________ to school on weekdays. Where ________ ( be ) Mai ? – She ( play ) ______________ in the garden. Tomorrow ( be ) ___________ Sunday. I ( do ) ______________ the housework. The teacher ( read ) _________ the dialogue at the moment and we ( listen ) __________ to him. Look ! She ( come ) ________________________

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

khánh linh 2k8

24 tháng 10 2019 lúc 18:59

chia động từ 1 he often ( go )............ to school on foot.2 It ( rain ) ................. very hard now .3 The sun ( warm ) ........... the air and ( give ) ................. us light4 Look ! A man ( run ) after the train 5 she ( go ) .................... to school everyday6 Bad students ( not work ) ........ hard7 It ofter ( rain ) ........................ in the summer8 the teacher always ( point ) ................... at the black- board when he ( want ) ..................... to explain so...

Đọc tiếp

chia động từ

1 he often ( go )............ to school on foot.

2 It ( rain ) ................. very hard now .

3 The sun ( warm ) ........... the air and ( give ) ................. us light

4 Look ! A man ( run ) after the train

5 she ( go ) .................... to school everyday

6 Bad students ( not work ) ........ hard

7 It ofter ( rain ) ........................ in the summer

8 the teacher always ( point ) ................... at the black- board when he ( want ) ..................... to explain something

9 Mother ( cook ) ......................... some food in the kitchen at the moment , she always .................. ( cook ) in the morning

10 I always ( meet ) ....................him on the corner of the street

11 Where ............... you ( go ) ................ now ? - I ( go ) ........... to the theater.

12 He ( not do ) .............. morning exercises regularly .

13 .......................he ( do ) ...............morning exercises now ?

14 Water ( boil ) .......................at 100 degrees centigrade

15 ................ you ( be ) a good student ?

16 They ( not go ) ................ to school by motorbike

17 He ( swim ) ...........over there now

18 They ( not be ) ........................ doctors

19 He ofter ( get ) ....................up late

20 ..........you ofter ( watch ) ............TV ?

21 ....................mr . Brown ( listen ) ................to music now ?

22 I usually ( go ) ...................... ( shop ) ................... at the weekend .

23 Hai ofter ( wash ) ......................... his face at 6,15

24 ............................she ( play ) .................... badminton at the moment ?

25 Thanh and mai always ( see ) .................a movie on saturday

26 ....................he ofter ( take ) ......................... bus to schoon?

27 we ( be ) ..........students in class 8A

28 she ofter ( not do ) ...............homework in the evening

29 he usually ( take ) ...........................a taxi to the airport

30 they usually ( not go ) .............. to school by bike

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

Trần Minh Anh

5 tháng 3 2021 lúc 20:41

Give correct form of the verbs (Chia động từ trong ngoặc): 1.I ( visit ) .............................my grandfather tomorrow. 2. My mother ( cook ) ………................dinner now . 3.He never ( go ) ..................camping because he ( not have ) ................a tent. 4.He (go) .............to school with me every day. 5.What .........Tom (do) ............now ?- He (watch) ........................ TV ? 6. My friend (take) ..........................................a trip to DaLat next we...

Đọc tiếp

Give correct form of the verbs (Chia động từ trong ngoặc): 1.I ( visit ) .............................my grandfather tomorrow. 2. My mother ( cook ) ………................dinner now . 3.He never ( go ) ..................camping because he ( not have ) ................a tent. 4.He (go) .............to school with me every day. 5.What .........Tom (do) ............now ?- He (watch) ........................ TV ? 6. My friend (take) ..........................................a trip to DaLat next week. 7.We (visit) ......................................Ha Long Bay this summer. 8. How ..........she (feel)............? She (be) ...........hot and thirsty. 9. I (want) ..........some bread. I (be) .......hungry. 10. She (travel).............. to school by bike everyday. 11. These (be) ............his arms. 12. Miss Chi (have)................. brown eyes. 13. What colour ..................(be) her eyes? 14. What ..............you ...................(do) this summer vacation?- I..................... (visit) Da Lat. 15. What ............he ................(do) tonight? - He ..............(watch) a film. 16. They (do) ........................their homework now. 17. They (like)................. warm weather. 18. When it is hot, we .......(go) swimming. 19. What ......she .....(do) in the spring? - She always...... (go) camping. 20. Ba and Lan sometimes (go) .................to the zoo.

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

Akari Yukino

9 tháng 7 2019 lúc 16:39

Bài 3 : Điền dạng đúng của động từ trong ngoặc.Chỉ cần viết từ đó ra thôi, ko cần viết cả câu đâu 1. I (be) ________ at school at the weekend.2. Look over there. It (fly) ________________high in the sky.3. My children (be)________ upstairs now.4. He (have) _________ a new haircut today.5. I feel happy because I (have) _______________a good time here in these woods.6. She (live) ___________ in a house?7. My students (be not) _____________ hard working.8. Silvia (not listen) _________________ to...

Đọc tiếp

Bài 3 : Điền dạng đúng của động từ trong ngoặc.

Chỉ cần viết từ đó ra thôi, ko cần viết cả câu đâu ><

1. I (be) ________ at school at the weekend.

2. Look over there. It (fly) ________________high in the sky.

3. My children (be)________ upstairs now.

4. He (have) _________ a new haircut today.

5. I feel happy because I (have) _______________a good time here in these woods.

6. She (live) ___________ in a house?

7. My students (be not) _____________ hard working.

8. Silvia (not listen) _________________ to music at the moment.

9. Jack and Peter (work) ___________ late today.

10. I usually (have) ____________ breakfast at 7.00.

11. Where your husband (be) ________?

12. How many other student________________you (study) _____________with today?

13. He always (make) ___________ noisy at night.

14. Look! The bus (come) ______________.

15. She (wear) ________ earrings today.

16. Sara usually (put) _______________ on black shoes but now she (wear) _______________ white

trainers. And look, she (take) _______________ an umbrella.

17. They (play)___________ games. John (not read) ______________ a book now

18. Maria (sit) ______________ next to Paul right now.

19. Listen to the birds. They (sing) ________________.

20. She (not study) __________________ on Friday.

21. The other one (play) _________________with a worm.

22. Look! Sara (go) _______________to the movies.

23. What __________ you (do) _________ tonight?

24. On her right hand, Sara (carry) _______________ her handbag. The handbag (be) ________ very

beautiful.

25. The weather (get) ____________ cold this season.

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

do le quyen

30 tháng 12 2017 lúc 20:16

Chia các từ trong ngoặc:1.I usually (go)...........to school by bike ; but today I(walk) .................to school.2.Your brother (live)..............in the country or in the city?-He (live) in the city.3.Nam (not/be)..............well ; so he cant go to school today.4.Nam (watch).............television at the moment.5.Who helps you do your Math homework?-My mom (help)........me.6.Look ! Her teeth (be).......clean and beautiful.7.Hoang often (not/have)................a pencil in his school bag....

Đọc tiếp

Chia các từ trong ngoặc:

1.I usually (go)...........to school by bike ; but today I(walk) .................to school.

2.Your brother (live)..............in the country or in the city?-He (live) in the city.

3.Nam (not/be)..............well ; so he can't go to school today.

4.Nam (watch).............television at the moment.

5.Who helps you do your Math homework?-My mom (help)........me.

6.Look ! Her teeth (be).......clean and beautiful.

7.Hoang often (not/have)................a pencil in his school bag.

8.Every morning ; my family usually (have).........breakfast at home.

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

Đặng Quang Sáng

20 tháng 2 2018 lúc 8:32

IX.Chia động từ trong ngoặc : 1. Would you like_____________(drink) some juice? 2. ____________(Not go) skiing in this weather. It __________(snow) so heavily now. 3. She______________(not usually talk) about hersefl. 4. Where______________they____________(meet) tomorrow? - I_____________(not know). 5. She_______________(not have) a happy childhood when she was young. 6. Look! The star_______________(come) in. 7. _____________(Be) she in England last month? 8. I____________(be) hungry. I want___...

Đọc tiếp

IX.Chia động từ trong ngoặc : 1. Would you like_____________(drink) some juice? 2. ____________(Not go) skiing in this weather. It __________(snow) so heavily now. 3. She______________(not usually talk) about hersefl. 4. Where______________they____________(meet) tomorrow? - I_____________(not know). 5. She_______________(not have) a happy childhood when she was young. 6. Look! The star_______________(come) in. 7. _____________(Be) she in England last month? 8. I____________(be) hungry. I want___________(eat) something. 9. - Where____________she___________(come) from? - She__________(come) from China. She____________(be) Chinese. 10. How about_____________(go) swimming at the weekend? 11. She______________(like) romantic movies? - Yes, she always (watch) them. 12. The Earth_____________(go) around the Sun. 13. ____________you____________(write) a letter at present? 14. ____________she____________(go) to London next month? 15. My friend (take)________________a trip to DaLat next week. 16. Let ‘s_____________(play) a game. 17. How long____________(be) this bridge? 18. This table is so dirty! - I_____________(clean) it at once, sir! 19. He never ( go )________________camping because he (not have )________________a tent. 20. When it is hot, we________________(go) swimming. 21. ___________Marry___________(go) camping next Sunday? - Yes, she__________. 22. It is 9 o’clock. We______________(lie) on the beach.

Xem chi tiết

Lớp 6 Tiếng anh Câu hỏi của OLM

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)