—I have got a headache. —No wonder. You __________ in front of that computer too long.

—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

答案

. C。

解析:

由于在电脑前工作太久，所以导致了现在头痛的结果，故空格处应填现在完成时或现在完成进行时，即答案选C。

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