I _____ an exchange student here for a year now. [ ]A. am B. wasC.

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I _____ an exchange student here for a year now. [ ]
A. am
B. was
C. have been
D. had been

答案

举一反三

—Where is Jack?
—He ______ London. He ______ there twice before.   [     ]
A. has been to; has gone to
B. has gone to; has been to
C. has been to; has gone
D. has gone to; has been

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—Who"s won the first prize in the competition?
—Henry _______. He has ______ it for a week.[     ]
A. is; won
B. is; got
C. has; had
D. has; been given

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用所给动词的适当形式填空。1. I ___________ (be) learning English for five years since I was ten years old.
2. If I don"t study hard, I ___________ (not pass) the final exam.
3. I ___________ (study) for my exam when my friend called to invite me to the movies.
4. We ___________ (have) so many exams this year that I am sick of them.
5. It ___________ (be) a nice day yesterday, wasn"t it?
6. It"s now four o"clock, so we ___________ (be) skating for about two hours.
7. I ___________ (go) to school early today.
8. My friend ___________ (collect) shells as a hobby.
9. We are going to the beach tomorrow, ___________ (be) we?
10. My brother ___________ (be) playing the piano since he was ten.

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Avatar《阿凡达》is an interesting film. My brother __ ____ it twice already.[     ]
A. sees
B. saw
C. has seen
D. will see

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So far this year, many new houses in Wenchuan with the help of the government.
A. build
B. are built
C. will build
D. have been built

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