1.It is unknown that when we will have the meeting.
答案:去掉that
2.We won the match surprised us all.
答案:We→That we
3.Whether she will come matter a great deal.
答案:matter→matters
4.That he discovered is what I want to know.
答案:That→What
5.That he will come depends on the weather.
答案:That→Whether
6.I asked Mary what was she doing there.
答案:was she→she was
7.All that he does is different from that he actually says.
答案:第二个that→what
8.Whether we’ll build the factory haven’t been decided yet.
答案:haven’t → hasn’t
