We students should do what we can _____ the environment being polluted. [ ]A

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We students should do what we can _____ the environment being polluted.

[ ]

A. respond
B. to keep
C. force
D. to stop

答案

举一反三

Paul doesn"t have to be made _____. He always works hard.

[ ]

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

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Oh, it"s very cold here; let"s make a fire _____ ourselves up.

[ ]

A. warm
B. warming
C. warmed
D. to warm

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It"s necessary for you _____ the car when you do not use it.

[ ]

A. lock
B. to lock
C. locking
D. locked

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In such dry weather, the flowers will have to be watered if they _____.

[ ]

A. have survived
B. are to survive
C. would survive
D. will survive

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As a result of my laziness, I failed _____ my work in time.

[ ]

A. and finished
B. to finish
C. and finishing
D. to finished

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