问题 选择题
His father got him a job in a bank but soon it became clear
   he was not fit for that kind of work.
A.whyB.what C.whetherD.that
答案

D

题目分析:本题考查主语从句。
句意: 他爸爸在银行给他找了一份工作, 但是很快表明他不适合那种工作。分析句式it became clear. . . 可知it为形式主语, 真正的主语为后面的从句, 且从句意思完整, 故用连接词that引导。
故选D。

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