—When were you born? —I was born the morning of February 25th 1997.A. toB. onC. inD. at

问题补充：

—When were you born?

—I was born the morning of February 25th,1997.

A. to

B. on

C. in

D. at

答案：

A. to

(答案→)B. on

C. in

D. at

解析：本题考查介词。表示在具体的一天的早上，晚上或下午，故选B。句意：——你什么时候出生的？——我出生在1997年2月25日早上。