I'm afraid he’s more of a talker than a doer, which is he never finishes anythin
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I'm afraid he’s more of a talker than a doer, which is ____ he never finishes anything．
A.that
B.when
C.where
D.why
试题答案
D
考查表语从句。根据句意可知D正确。句意：恐怕他是一个说大话的人，这正是为什么他从未做成事情的原因。