()3.Mr.BlackwentbacktoAmericathemorningofWednesdayJanuary8th10：00.A.on;atB.in;atC.on;onD.in;on

Question

(       )3.   Mr. Black went back toAmerica

the morning of Wednesday January 8th  ____ 10： 00.

A.  on; at                B.   in; at

C.  on; on               D.  in; on

Answer 1

3.      A表示"在具体某一天的早晨、下午、晚上"用介词 _on; 具体时刻前用介词 _at 。