CORRECT THE MISTAKES.

1. I prefer to talk with friends rather than to watch television.
2. He's going to the dentist this afternoon but he wishes he weren't.
3. Had I waited longer, I'd have seen the parade.
4. If they will go on making so much noise, I will have to punish them.
5. It's a shame we didn't see the exhibition. We wish we saw it.
6. Tim will be able to operate the machine only if somebody showed him how.