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Giúp nhanh ikkkk
----- Nội dung dịch tự động từ ảnh -----
21. In one year's time, she__
A. will be working
C. will work
for this company for 15 years.
B. will have been working
D. has worked
22. His health has improved a lot since he__
A. starts
B. started
23. She hurt herself while she_
A. is playing
doing exercises regularly.
C. has started
B. had played
hide-and-seek with her friends.
C. played
D. was playing
24..What
at 9 o'clock last night? I phoned you but couldn't get through to you.
B. were you doing
C. would you do
D. had you done
A. did you do
25. It is raining heavily with rolls of thunder. We__such a terrible thunderstorm.
A. would never see B. had never seen C. have never seen D. never see
D. had started