They__________ all their money, so they have to walk home. [ ]A. spend B. h

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They__________ all their money, so they have to walk home. [     ]
A. spend
B. had spent
C. have spent
D. will spend

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举一反三

He ____ in the factory since he left school ten years ago.[ ]
A. works
B. worked
C. was working
D. has worked

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Our school   ______ a lot these years. It looks much more beautiful than before.[     ]
A. changes
B. changed
C. will change
D. has changed

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My brother ___ in his school for two years. [ ]
A. were
B. has been
C. is
D. is being

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—Where is Bob ?
—He has ______ Shanghai . [ ]
A. gone to
B. been to
C. been in
D. gone in

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More than half of the workers in this factory _____ from the south. [     ]
A. are coming
B. is coming
C. have come
D. has come

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