Malaysia Airlines Flight MH370 was expected to land in Beijing the morning of March 8.A. i

问题补充：

Malaysia Airlines Flight MH370 was expected to land in Beijing the morning of March 8.

A. in

B. on

C. of

D. at

答案：

A. in

(答案→)B. on

C. of

D. at

解析：句意：马来西亚航空公司的航班MH370预计3月8日上午在北京着陆。具体的一天或一天的上下午晚上用介词on，故选B。