题目

To be qualified for the job, _____. A. one needs to have profound knowledge   B. profound knowledge is important   C. profound knowledge is a must   D. it is required that one has profound knowledge 答案：A 解析: 考察非谓语动词之不定式，不定式位于句首做状语，逻辑主语必须和句子的主语一致，to be qualified for the job 的逻辑主语是人，B,C,D 选项的主语分别是 profound knowledge， profound knowledge 和it, 均是物，A选项one 指人，故选A

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