题目内容
Nobody knew that the reason______ he was often blamed. Perhaps that was______ he made the same mistakes told several times.
A. which; because B. why; because C. that; that D. why; that
B
解析:
先行词为表原因的the reason, 且从句中的不缺主语和宾语, 所以第一空用关系副词why引导; 第二空是由because引导的表语从句, 即That is/ was because…句式。
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