Since the beginning of this year no issue _____ yet.[ ]A. is published B. h

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Since the beginning of this year no issue _____ yet.[     ]
A. is published
B. has been published
C. will be published
D. was published

答案

举一反三

So far, how many digital cameras _____ in your shop?[ ]

A. are sold
B. will sell
C. sold
D. have been sold

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Great changes _____ in our country recently.[     ]
A. have happened
B. happened
C. have been happened
D. were happened

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—What"s the result of the math test?
—Not only you but also he_____ the exam.   [     ]
A. pass
B. have passed
C. has passed
D. is passed

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—Why didn"t you go to see the film yesterday?
—Because I _____ it twice.       [     ]
A. had seen
B. have seen
C. saw
D. has seen

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Mr. Brown ______ with US since he came to Xinjiang. [     ]
A. worked
B. have worked
C. works
D. has worked

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