—Ihavegotaheadache.—Nowonder.Y

— I have got a headache.
— No wonder. You___________in front of that computer too long.

A．work

B．are working

C．have been working

D．worked

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相关试题

I ___ to your excuses for making so many mistakes.I shall report to your father at once.

A．listened

B．will not listened

C．listen

D．am not listening

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The sun ___ red.It __ in the east.

A．is…rise

B．is…rises

C．is…rising

D．will be…rise

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To answer correctly is more important than ___.

A．finishing quickly

B．you finish quickly

C．to finish quickly

D．a quickly finish

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Great changes ___ in our city since 1977.

A．take place

B．have taken place

C．took place

D．are taken place

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The fact has worried many scientists ______ the earth is getting warmer and warmer these years.

A．what

B．which

C．that

D．though

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