The meeting will begin 4:30 this afternoon. Don’t forget it.A. onB. inC. atD. for

问题补充：

The meeting will begin 4:30 this afternoon. Don’t forget it.

A. on

B. in

C. at

D. for

答案：

A. on

B. in

(答案→)C. at

D. for

解析：句意：今天下午4：30会议开始。别忘了。时刻前介词用at。根据题意，故选C。