I was late for school today,because_____alarm didn’t go off this morning.

问题描述:

I was late for school today,because_____alarm didn’t go off this morning.
A.a
B.an
C.the
D./

C
the alarm 闹钟
特指自己的那个闹钟,用定冠词
翻译:我今天上学迟到了,因为闹钟早上没响.