12. By Christmas, I _______ for Mr. Smith for six years. A. will have been working B. will work C. have been working D. will be working 13. I _______ in the room right now. A. am being B. was being C. have been being D. am 14. I ______ to New York three times this year. A. have been B. was C. were D. had been 15. I'll come and see you before I _______ for the States. A. leave B. will leave C. have left D. shall leave 16. The little girl asked what _______ to her friend. A. has happened B. happened C. had happened D. would have been happened 17. John ______ a book when I saw him. A. is reading B. read C. was reading D. reading 18. He said he _______ return later. A. will B. would C. can D. would be 19. Jack ________ the door. A. has just opened B. open C. have opened D. opening 20. I have been waiting for you ______. A. since early morning B. since 9 a. m C. for two hours D. All are correct
2 câu trả lời
12. A. will have been working
⇒ Dấu hiệu thì TLHTTD : By Christmas , for six years.
⇒ Thì TLHTTD : S + will have been + Ving
13. D. am
⇒ Dấu hiệu thì HTTD : now
⇒ Thì HTTD : S + am/ is/ are + V-ing
14. A. have been
⇒ Dấu hiệu thì HTHT : three times this year
15. A. leave
⇒ Thì HTĐ
16. C. had happened
⇒ Thì QKHT : S + had + VpII
17. C. was reading
⇒ QKTD when QKĐ
18. B. would
⇒ Câu gián tiếp,ta phải lùi thì.Ở đấy là would + Vinfi (Câu chủ động)
19. A. has just opened
⇒ Thì HTHT
20. D. All are correct
⇒ For + khoảng thời gian
⇒ Since + mốc thời gian
12A
13D
-> nếu chủ ngữ là I thì be là Am nhé
14A
-> thì HTHT : s + have / has + VPII
-> dấu hiệu nhận bt trong câu : three times this year.
15A
-> đây là thì HTĐ . diễn tả 1 thói quen của 1 ai đó : S + V/Vs/es
16C
-> đây là thì QKHT: s + had + VPII
17C
-> thì QKTD : S + was / were + V-ing
-> dấu hiệu nhận bt : when
18B
-> đây là câu tường thuật nên ta lùi thì
19A
-> thf HTHt + just : S + have / has + just + VPII
20D
-.> đay là thì HTHT + since / thì HTHT + for :
-> s + have / has + VPII + for + 1 khoảng thời gian
-> s + have / has + VPII + since + mốc thời gian
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