the reason why he came late was that……句型转换the reason ___ ___ ___ ___was that……
问题描述：
the reason why he came late was that……句型转换
the reason ___ ___ ___ ___was that……
答
我觉得是for his being late.因为reason后接for后可以再接名词,这里his being late是动名词,表示他的迟到的原因.