China ______ six astronauts into space since 2003. [ ]A. sentB. will sendC.

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China ______ six astronauts into space since 2003. [ ]
A. sent
B. will send
C. has sent
D. has been sent

答案

举一反三

Mr. Ken _______ more than sixty Chinese paintings since he came to Shanghai five years ago. [ ]
A. collects
B. collected
C. has collected
D. will collect

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—Where is your uncle?
—He ______ to Hong Kong. He will come back in two weeks. [ ]
A. has been
B. had been
C. has gone
D. went

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Zhao Lan ______ already ______ in this school for two years. [ ]
A. was…studying　　
B. will…study 　
C. has…studied　　　
D. are…studying

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Not only you but also Tom _______ the exam. [ ]
A. pass
B. has passed
C. have passed
D. to pass

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We ________ 10 English songs so far.[ ]
A. are learning
B. learnt
C. have learned
D. will learn

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