1. I think it will be better if I don't phone Dave again. BETTER
2. I should not have bought that old motorbike. SHOULD
3. If only I had worked harder for the exams. ONLY
4. Steve wished he had not split up with Rosie. WISHES
5. I was lucky not to have hurt myself on that glass. HAVE
6. Why should I walk through the park in the dark? SHOULD
7. I really wish our neighbours wouldn't make so much noise. WISH
8. If only I lived near the sea. IF