Teenagers ______ their health because they play computer games too much.A．have d

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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

略

举一反三

---“Excuse me, sir? Would you mind moving a little bit to the left? You ______ my view of the screen.”
---Oh, sorry I ________ it.

A．are blocking out; didn’t realize	B． are blocking up; haven’t realized
C．have blocked up; don’t realize	D．have blocked out; didn’t realize

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——Did you write to Grace last summer ?
——No, but I’ll her over Christmas vacation .

A．be seen

B．be seeing

C．have seen

D．have been seeing

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Mr. White works as a lawyer now, but he in a company for several years.

A．worked

B．has worked

C．had worked

D．has been working

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— John this week?
—No. He’s on holiday.

A．Does, work

B．Did work

C．Has, worked

D．Is, working

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—You shouldn’t have gone there alone last night.
—But I __________ , because Xiao Wang went there, too.

A．didn’t

B．had to

C．did

D．should

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