A cook will be immediately fired if he is found _____ in the kitchen. [

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A cook will be immediately fired if he is found _____ in the kitchen.      [      ]
A. smoke
B. smoking
C. to smoke
D. smoked

答案

举一反三

The library needs _______ , but it will have to wait until Sunday.      [     ]
A. cleaning
B. be cleaned
C. clean
D. being cleaned

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During the football match, he hurt his arm as well as       his leg.   [     ]
A. break
B. breaks
C. breaking
D. broke

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According to a recent U.S. survey, children spent up to 25 hours a week _________ TV.[    ]
A. to watch
B. to watching
C. watching
D. watch

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I have never dreamed of ______such a beautiful place in the world.  [     ]
A. there is
B. there to be
C. there being
D. having

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My teacher takes great trouble ______me learn English, since I have a lot of trouble _____it. [ ]
A. helping; learning
B. to help; to learn
C. helping; to learn
D. to help; learning

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