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.―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

 

 

 

解析:本題考查動詞時態。從句意“你在電腦前工作的時間太長”可知,動作從過去開始。一直延續到現在,可能還會繼續延續下去,所以應用現在完成進行時。

 

 

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