Teenagers ____ their health because they play computer games too much.A．have dam

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Teenagers ____ their health because they play computer games too much.

A．have damaged

B．are damaging

C．damaged

D．will damage

答案

解析

考查现在进行时态的用法。从句子后面的时态"because they play computer games too much”可以看出，是“现在一直在做的动作”。

举一反三

A new stadium ___ at present in our city.Work on it ___ in another two months.
A, is built, will complete B. is being built, will complete C. is being built, will be completed D. is building, will be completed

题型：不详难度：| 查看答案

--Why didn’t Tom have his lunch? It’s already one o’clock.

---His pet bird ____this morning. He____still for quite a long time in his room crying.

A．died; had sat

B．has died; has sat

C．has died; is sitting

D．died; has been sitting

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Since I won the big prize, my telephone hasn"t stopped ringing. People ____to ask how I am going to spend the money.

A．phone

B．will phone

C．were phoning

D．are phoning

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Years ago we didn"t know this, but recent science ______ that people who don"t sleep well soon get ill.

A．showed

B．has shown

C．will show

D．is showing

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The policeman"s attention was suddenly caught by a small box which ______ placed under the Minister"s car.

A．has been

B．was being

C．had been

D．would be

题型：不详难度：| 查看答案