I can't use this alarm clock.Could you tell me how to__the time?A.set upB.set offC.setD.set down

c 设定

A.set up 设置时间

I can't use this alarm clock.Could you tell me how to__the time? 答案：A.set up
意思是“设置”
B.set off
C.set
D.set down

C.set 校正,调正[(+for)]
She set the alarm for 5 a.m.
她把闹钟拨到早晨五点响铃。

A,
祝你更上一层楼,有不懂的可以再问哦

C, set alarm clock:设闹钟

C