Question

___he hasn’t come is_______ he is busy writing his novel.

A．Why, because;

B． Why, for;

C．That, because;

D．What, for

Answer 1

A

考查名詞性從句。第一空是由Why引導的主語從句，第二空是because引導的表語從句。句意：他沒來的原因就是因為他在忙于寫小說。所以選A。