问题补充:
----Did you your friend when you were in Beijing?
---No. But I my aunt’s during my stay there.
A. call on; called on
B. call at; called at
C. call on; called at
D. call at; called on
答案:
A. call on; called on
B. call at; called at
(答案→)C. call on; called at
D. call at; called on
解析:考查短语:call on sb 拜访某人,call at 拜访某地,句意:当你在北京的时候你拜访了你的朋友了吗?没有,但是在我停留在那的日子我拜访了我姑姑家。所以选C。