=>
1. If Kate hadn't been wearing a seat belt, she would have been injured in the accident.
2. I wrote a letter to them to thank them for the party.
3. If Kate hadn't been studying, she would have answered the phone.
4. She went to university to study economics.
5. If you won the lottery, what would you do?
6. If Dick didn't drive carelessly, he wouldn't cause accidents.
7. If John had helped Peter, he would have finished.
8. If you don't hurry up, you will be late.
9. If we don't hurry, we will miss the train.
10. If he had enough money, they could have bought the house