lt"s easy ____________[ ]A. to stay health B. stay healthy C. to stay health

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lt"s easy ____________[ ]
A. to stay health
B. stay healthy
C. to stay healthy
D. stay health

答案

举一反三

It"s time ______ home. [     ]
A. go
B. come
C. to go
D. to come

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When did your sister start __________ English? [ ]
A. to study
B. study
C. studies
D. studied

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I"d like you ___________ supper with us this evening. [ ]
A. have
B. having
C. are having
D. to have

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The worker warned us           the machines.  They are dangerous. [     ]
A. touch
B. not touch
C. not to touch
D. touching

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Sean"s health is worse than before. Mr Smith has  warned him ______.[     ]
A. to smoke
B. not smoke
C. not to smoke
D. smoking

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