______has he been to beijing?

题目

______has he been to beijing?
A.How long B.How soon C.How many times D.How often
为什么一定要选C 而不可以选A呢?

答案

A多久,B过多久(常与一般将来时连用),C多少次,D多久一次.而'HAVE BEEN TO' 是'曾经到过.',所以,根据句意'他到过北京多少次?' 只有C对,如果把TO 改为IN,用A就对.