There _____ a lot of changes here since 1980. [ ]A. have been B. have hadC.

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There _____ a lot of changes here since 1980. [ ]
A. have been
B. have had
C. will be
D. are

答案

举一反三

I _____ that movie four times.
A. see
B. seen
C. saw
D. have seen

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—Would you like to see the film with me?
—Sorry. I _____ it twice.
A. am seeing
B. will see
C. see
D. have seen

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My uncle is a computer programmer in IBM. He _____ there for 5 years.
A. works
B. worked
C. will work
D. has worked

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—Hello! Can I speak to Alice?
—Sorry. She isn"t here right now. She _____ to the shop.
A. goes
B. will go
C. has gone
D. was going

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Help! Wang Qiang _____ an accident.
A. was having
B. had had
C. has had
D. will have

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