10. I _______ the way. I ________ here for quite many years.
A. knewhave lived C. knewlive C. knowhave lived D. knowlive
11. _____ you ever _____ America ? Yes, I have.
A. Havegone to B. Havegone in C. Havebeen to D. Have been in
12. My brother ____college for over three years.
A. has gone to B. has been to C. has been in D. has been at
13.He ________ the Army by the end of 1989. He ______ in the army since then.
A. joinedis B. has joinedhas been C. had joinedis D. had joined has been
14. By the time I _____ back they ____ up ten satellites.
A. camehave sent B. camehad sent C. comehave sent D. had comesent
Answers:
1). 1.teaches is talks talking is talking
2. is reading reads
3. are are playing Is playing is playing
4. does work works isnt working is staying
5. does close doses is closing
6. goes
7. is carrying
8. are having
9. standing Ask
10. is getting
2). 1. Do变为Does 2. does变为do 3. I amnt变为Im not.
4. studies变为study 5. think变为thinks
3).1. have seen saw
2. Has finished
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