1) He is a good lawyer, he doesn't make such a mistake. (lol, suck?
2) I wish I could get this project done by tomorrow.
3) I wish I had a big car. (I wish I had had a big car is also correct)
4) I wish it would stop raining.
5) I wish they had come last joliday with us.
6) I would rather he didn't go for a walk.
7) If Australia did not happen to be isolated from the rest of the world, it wouldn’t possess such a unique fauna.
8) If I had taken an aspirin an hour ago, I would not have had a headache now.