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Các ước chung của 168 là 1, 2, 3, 4, 6, 7, 8,12,14, 21,2 4, 28, 42, 56, 84,168
ủa sao bạn hỏi lắm thế bạn đag thi hỏi thế này là gian lận đấy
A nha bạn
HT
P/S:(có vẻ bạn đang có một bài thi,mình nghĩ vậy thôi nha ^_^)
1. My friends and I often do our __________ after school.
A. homework B. football C. science D. lessons
2. Duy __________ to school every day.
A. cycle B. cycles C. is cycling D. is cycles
3. My friend has a sister, but she ________ a brother.
A. don’t have B. not has C. doesn’t have D. isn’t have
4. My ________ house is in Ha Noi.
A. grandmother B. grandmothers C. grandmother’s D. grandmothers’s
5. Where is ________ bike?
A. Minh’s B. Minhs’ C. Minhs’s D. Minhs
6. The dog _______ on the chair.
A. be B. is C. am D. are
7. The cats _________ under the table.
A. are B. is C. am D. be
8. The table is between the sofa _________ the lamp.
A. but B. and C. of D. to
9. Nam is __________. He s helping his friends.
A. careful B. shy C. clever D. kind
10. Let’s _________ to the library this afternoon.
A. going B. to go C. go D. goes
11. – “Where’s Lisa?”
- She’s ___________ Mum in the kitchen.
A. helping B. helps C. is helping D. help
12. _____ they ______reading books in the library? – Yes, they are.
A. Is/ reading B. Are/reading C. Am/reading D. Do/read
13. Look! He _________ play football now.
A. playing B. plays C. is playing D. play
14. Apples ________ good for our health.
A. are B. is C. am D.be
15.She’s a good student. She _________ does her homework on time.
A. never B. rarely C. usually D. sometimes
16. Laura is very _________. She is always entertaining us with jokes and stories.
A. confident B. funny C. caring D. creative
17. There are some pictures ________ the wall in my bedroom.
A. on B. in C. under D. in front of
18. Mr Nam ________ history at our school.
A. teach B. teaches C. teaching D. to teach
19. We often use a __________ in a maths class.
A. bike B. uniform C. compass D. picture book
20. My best friend ________ to school every day. She cycles.
A. not walk B. don’t walk C. isn’t walk D. doesn’t walk