【題目】The Grade 8 students in our school ________ here for one and a half years already.

A.studyB.studiedC.are studyingD.have studied

【答案】D

【解析】

句意：我們學校八年級的學生已經(jīng)在這里學習一年半了。

考查現(xiàn)在完成時。study學習；studied學習，study的過去式；are studying正在學習；have studied，studied的完成形式。根據(jù)句意可知，學生的學習是從過去開始的，一直持續(xù)到現(xiàn)在，有可能還會繼續(xù)下去。這屬于現(xiàn)在完成時態(tài)。其結(jié)構(gòu)是“have/has+過去分詞”。故選D。

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