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3. If I met her, I would give her your letter.
4. If he had prepared for the interview, he would have got the job.
5. If Tuan had come, we wouldn't have cancelled the meeting.
6. If they had passed the examination, their parents wouldn' have been very sad.
7. If it hadn't rained last night, I would have gone to the cinema.
8. If it hadn't rained a lot yesterday evening, we would have gone swimming.
9. If I hadn't had a bad headache yesterday, I would have gone to school.
10. If I had enough free time, I could take much exercise.
11. Unless you wear your coat, you'll be cold.
12. Unless you like this one, I'll bring you another.
13. Unless I have a quiet room, I'll not be able to do any work.
14. Unless she hurries, she'll be late.
15. Unless we had more rain, our crop wouldn't be better.
16. Unless the flood had risen, the crops wouldn't have been ruined.