Mr. Smith"s _________. Let"s wait for him here. [ ]A. hasn"t arrived C.

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Mr. Smith"s _________. Let"s wait for him here.  [     ]
A. hasn"t arrived
C. doesn"t arrive
B. didn"t arrive
D. couldn"t arrive

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举一反三

—Where is Zhang Ming?
—Oh,he ______to Beijing to see his parents and he"ll be back tomorrow.[     ]
A. has gone
B. has been
C. had gone
D. had been

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She has ____here for just over two months.[     ]
A. come
B. gone
C. got
D. been

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—How clean the bedroom is !
—Yes. I"m sure that someone______it.[     ]
A. cleans
B. cleaned
C. has cleaned
D. had cleaned

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单项选择How long have you___a League member?[ ]
A．become
B．became
C．be
D．been

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I____English for six years.[ ]

A. have learning
B.have learned
C. began to learn
D.learned

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