问题补充:
--When will Mr. Black come to Beijing?
-- the morning of September 5th.
A. In
B. On
C. At
D. For
答案:
A. In
(答案→)B. On
C. At
D. For
解析:句意:布莱克先生什么时候来北京?九月五号的上午。在具体某一天的上午,下午或晚上用介词on。所以选B。
时间:2019-01-20 02:10:27
--When will Mr. Black come to Beijing?
-- the morning of September 5th.
A. In
B. On
C. At
D. For
A. In
(答案→)B. On
C. At
D. For
解析:句意:布莱克先生什么时候来北京?九月五号的上午。在具体某一天的上午,下午或晚上用介词on。所以选B。