How this kind of plant can be ____ in a special way is still unknown to us.A．kep

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How this kind of plant can be ____ in a special way is still unknown to us.

A．kept away

B．kept out

C．kept alive

D．kept off

答案

解析

keep alive意为:使…活着; keep away意为:使…离开; keep out意为:不使入内,防止; keep off意为:不让接近.

举一反三

My brother tried ___, but still he couldn"t work out this maths problem.

A．a great deal of

B．a great deal

C．a number of

D．lots of

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I ___in North China, but now I ___ the weather in South China.

A．used to live, am used to

B．used to living ; used to

C．was used to living; am used to

D．used to live; uesd to

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He spoke so slowly that we all could ___ him.

A．catches

B．follow

C．understood

D．hearing

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The scientists are trying to ___ natural energy to decrease air pollution.

A．make friends with

B．make full use of

C．make notes of

D．make into

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I’ m sorry, I mistook you ___ your sister ___ mistake.

A．for, by

B．by, for

C．by, by

D．for, for

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