Cina overslept this morning because her alarm clock didn't _____A.run off B set off C turn off D.go off ________选那一个答案.请赐教.
问题描述：
Cina overslept this morning because her alarm clock didn't _____A.run off B set off C turn off D.go off ________选那一个答案.请赐教.
答
只能是b
a是流失的意思.
c是关掉
d是离开,变质等.
set off有引起,点燃等意思,比如引起爆炸什么的,所以应该比较合适