I was late for school this morning.But it was ____ my alarm clock didn't ring.A.soB.whyC.thatD.becase

问题描述:

I was late for school this morning.But it was ____ my alarm clock didn't ring.
A.so
B.why
C.that
D.becase

B引导表语从句,表示原因。

D.表原因么.是因为我的闹钟坏掉了.