Betty wants to see her teacher September 10th.A. onB. inC. atD. for

问题补充：

Betty wants to see her teacher September 10th.

A. on

B. in

C. at

D. for

答案：

(答案→)A. on

B. in

C. at

D. for

解析：此题考查介词的基本用法，确指某一天的时候要用介词on。