1. If we cycle to school every day, we will keep air clean and fresh
2. If she does not understand anything, I will explain to her
3.If it rains, we will cancel the match
4. If we walk to school, we will make the air less polluted
5. If we go on holiday, there will be time
6. If Andrea doesn't happy, he won't know the truth
7. If it is rainy, I will stay at home and read books
8. If the teacher is pleased, we will do our homework