9.Both Japanese and French are new to me.I don’t know _____ of them.

题目

9.Both Japanese and French are new to me.I don’t know _____ of them.
A.both B.all C.either D.any
什么情况下用D?为什么不用A?请解释清楚.
什么情况下

答案

选C
A是两者都,是肯定.这里是否定.所以不行.
D是任何,用在三个以上.这里是两个,所以不行.