9. ________ do you go to bed? – At half past ten. A. What B. Why C. How D. What time 10. What ___________at this time yesterday? A. did you do B. you did C. were you doing D. had you done 11. Since I left Venezuela six years ago, I ________ to visit friends and family several times. A. return B. am returning C. will have returned D. have returned 12. We were watching TV when the light ________ out. A. went B. has gone C. had gone D. were going 13. Tam has a big ________ of foreign coins. A. collector B. collection C. collecting D. collective 14. John often goes to bed early and ________up late. A. gets B. to get C. get D. got 15. We could _______swimming in the morning. A. be B. go C. make D. do 16. I know that he ________ in the library at this moment. A. works B. has worked C. is working D. was working MỌI NGƯỜI GIÚP MIG CẢM ƠN

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