Question

I'm afraid he’s more of a talker than a doer, which is ____ he never finishes an

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

Answer 1

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。