My brother born the morning of January 1st.A. is onB. was onC. is inD. was in

问题补充：

My brother born the morning of January 1st.

A. is, on

B. was, on

C. is, in

D. was, in

答案：

A. is, on

(答案→)B. was, on

C. is, in

D. was, in

解析： be born表示出生的意思，通常be用过去，主语是第三人称单数，故be用was，在时间前只要有天的通常用介词on，故选B。