5. If she hadn't helped me that time I would have been in a very difficult situation.
6. You will not understand the rule if you do not listen to the teacher.
7. I wish I were free now!
8. What a pity yesterday I had a little time.
9. I wish we had had vacations now!
10. It's (such) a pity we didn't find him at home.
11. They will surprise if I make such a mistake/a mistake like this.
12. If you did morning exercises every day your health would be much better.