—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

C


解析:

現(xiàn)在完成進(jìn)行時(shí)表示動(dòng)作從過(guò)去某一時(shí)間開(kāi)始，一直延續(xù)到現(xiàn)在，可能還要繼續(xù)下去。根據(jù)所提供的情景“I have got a headache.”可判斷出由于在電腦前連續(xù)工作而造成了頭痛，故選C項(xiàng)。一般現(xiàn)在時(shí)表示經(jīng)常性的動(dòng)作或存在的狀態(tài)；現(xiàn)在進(jìn)行時(shí)表示正在進(jìn)行的動(dòng)作或存在的狀態(tài)；一般過(guò)去時(shí)表示過(guò)去發(fā)生的動(dòng)作或存在的狀態(tài)。

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