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    【题目】I was not sure _______ I had the qualification for the job, but I applied for it anyway.

    A. that B. whether C. what D. how

    【答案】B

    【解析】

    试题分析：句意：我不确定是否我有资格胜任这份工作，但是我还是申请了 。A. that 引导名词性从句，不做成分，无翻译，只起连接作用；B. whether是否；C. what引导名词性从句，做主语或宾语成分； D. how如何；怎样。 根据前后句语境得知是指“不确定是否”，故选B。

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