13.一I’m sorry.That
wasn’t of much help.
一Oh, .As
a matter of fact,it was most helpful.
A.sure
it was
B.it doesn’t matter
C.of
course not D.thanks
anyway
[解析]:A

。考查日常用语。后句中的As a matter of fact, it was
most helpful,可知是对前句表意的否定,所以A项合适。句意为:“对不起,那帮助不太大。当然不是了,实际上,它很有用。”