问题
选择题
My father is going to shop____3 o'clock____the afternoon____ March 23rd.
A．in;at;on
B．at;in;on
C．on; in; at
D．at; on; in
答案
答案：B
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
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