I‘m sorry I ( ) you ( ) a meeting.A.don't know;are having B.don't know;were havingC.didn't know;were having D.mustn't know ;are having
问题描述:
I‘m sorry I ( ) you ( ) a meeting.
A.don't know;are having B.don't know;were having
C.didn't know;were having D.mustn't know ;are having
答