It"s necessary for you _____ the car when you do not use it. [ ]A. lock B. t

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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

答案

举一反三

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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We are not allowed _____ outdoors with some other children.

[ ]

A. playing
B. to be playing
C. to play
D. be playing

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She feels so strongly that each of us should have a role _____ in making the earth a better place to live in.

[ ]

A. to have played
B. to play
C. to be played
D. to be playing

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_____ this cake, you"ll need 2 eggs, 175g sugar, and 175g flour.

[ ]

A. Having made
B. Make
C. To make
D. Making

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