1. I wish I didn't disobey / hadn't disobeyed my teacher this morning.
2. If only I would fix / could fix the game console and do on playing
3. This maths problem is so hard. If only I knew / had known how to solve it

Rewrite the sentences using the wards given.

4. It wasn't a good idea to use the numbers 1234 as a password. (shouldn't) I
5. The most logical explanation is that someone stole the document. (must) Someone