1. If you don't put on sun lotion, you will burn.
2. If your brother buys that dog, he will have to walk it every day.
3. If he drives to the airport, it will take him four hours.
4. I will cook dinner if I get home first.
5. If your parents open a restaurant on the High Street, they will get a lot of business.
6. I will buy a flat next year if I save enough money before then.
7. If he does not pass) his exams, he will not go to university.
8. If the homework is too difficult, I will phone you for help!
9. If you buy this dress, you will not wear it very often.
10. If I visit Ann this summer, she will visit me next year.