It"s very difficult _____ interesting films for children. [ ]A. produce

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It"s very difficult _____ interesting films for children. [     ]
A. produce
B. producing
C. to come out
D. to produce

答案

举一反三

My mother is _____ on the sofa. She is tired.   [     ]
A. sleeping
B. sleeps
C. to sleep
D.slept

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He stopped _____ but _____ nothing.  [     ]
A. to listen; heard
B. to listen; hear
C. listening; heard
D. listening; hear

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It is interesting _____ on the internet.  [     ]
A. to order
B. ordering
C. order
D. ordered

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He came here only _____.[     ]
A. say goodbye to us
B. saying goodbye to us
C. to say goodbye to us
D. what to say goodbye to us

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—Would you like _____ football with us?
—Sure. I like _____ football very much.[     ]
A. to play; playing
B. playing; play
C. to play; to play
D. playing; to play

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