The reason why he was removed was ______he was careless and dishonest. A,when   

题型：不详难度：来源：

The reason why he was removed was ______he was careless and dishonest.
A,when      Bbecause     C,that       D,what

答案

C

解析

试题分析：通过分析句子结构，可知这是一个多重复合句，其中包含一个由why引导的定语从句，还有一个表语从句。因为主句主语是The reason，所以只能由that引导表语从句。
点评：表语从句就是用一个句子作为表语。说明主语是什么或者怎么样，由名词、形容词或相当于名词或形容词的词或短语充当，和连系动词一起构成谓语。解答这类题目，关键在于分析清楚句子结构。通过判断引导词在从句中所作的成分及意义，来选择正确的引导词。