My father is going to shop3 oclockthe afternoon March 23rd.A. in;at;on B. at;in;onC. on;

问题补充：

My father is going to shop3 oclockthe afternoon March 23rd.

A. in;at;on

B. at;in;on

C. on; in; at

D. at; on; in

答案：

A. in;at;on

(答案→)B. at;in;on

C. on; in; at

D. at; on; in

解析：本题考查的是介词的用法，at+点时间，in the afternoon 在具体一天前用介词on，故选B