Wind _______ electricity widely in many parts of the world. A．is used to produce

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Wind _______ electricity widely in many parts of the world.

A．is used to produce	B．is used to producing
C．used to produce	D．used to producing

答案

解析

略

举一反三

I’m considering ________a washing machine, which is considered ________a great help to my wife.

A．buying; to be

B．buying; being

C．to buy; being

D．to buy; to be

题型：不详难度：| 查看答案

I feel it a great honor _________ to give a speech to you.

A．invited

B．to invite

C．having invited

D．to have been invited

题型：不详难度：| 查看答案

The teacher told the students ________ so much noise.

A．not make

B．not making

C．not to make

D．don’t make

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.When people move to another country, they often try ________ the customs of their native land.

A．to keep on

B．to keep off

C．to keep up

D．keeping up

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The old man came ___ to the railway station, only ___ the train was slowly pulling out of the station.

A．and ran; found　

B．running; finding

C．running; to find

D．to run; finding

题型：不详难度：| 查看答案