【題目】He________in this factory for 20 years already．

A．will work

B．works

C．has worked

D．is working

【答案】C

【解析】句意：他已經(jīng)在這家工廠工作了二十年。本題考查動(dòng)詞時(shí)態(tài)。根據(jù)for 20 years和already可知用現(xiàn)在完成時(shí)，故選C。

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