【題目】My sister Anna as a nurse since she finished college.

A. works B. has worked C. will work D. worked

【答案】B

【解析】

句意:我的妹妹Anna自從大學(xué)畢業(yè)后就參加工作做了一名護(hù)士。A. works單三形式; B. has worked 現(xiàn)在完成時C. will work將來時 D. worked過去式。since自從,表示動作從過去開始,一直持續(xù)到現(xiàn)在,所以應(yīng)該用現(xiàn)在完成時,其謂語動詞的形式是:has/have+done。故選B。

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