【題目】__________ out of work for a few months, mother took up the job of waiting on patients in the hospital.

A. To be B. Being C. Having been D. Having

【答案】C

【解析】句意：母親已經(jīng)失業(yè)好幾個月了，她開始在醫(yī)院里做照顧病人的工作。句意決定了要用現(xiàn)在分詞的完成式表示分詞的動作be out of work 發(fā)生在謂語動詞took up 之前，再根據(jù)句中的時間狀語for a few months 可判斷出選C項。

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