主语从句练习题~有木有大神能给个详细点的解析~在线等!

主语从句练习题~有木有大神能给个详细点的解析~在线等!
3. we’ll go camping tomorrow depends on the weather.
A. IfB. Whether C. That D. Where
4.he said at the meeting surprised everybody present.
A. What B. ThatC. The factD. The matter
5. was to return to school.
A. That really interested himB. What really interested him
C. Which really interested him D. That interest him really
6. makes mistakes must correct them.
A. WhatB. That C. Whoever D. Whatever
7._______ he made an important speech at the meeting was true.
A. That B. Why C. WhatD. How
8. ________we’ll go camping tomorrow depends on the weather.
A IfB Whether
C That D Where
9. It worried her a bit ______________ her hair was turning gray.
A. whetherB. that
C. whatD. when
10.What I say and think ___ none of your business.
A. is B.are C. has D have