1. If you study hard, you will pass the Entrance Examination 10
2. If you don't hurry up, you won't catch the bus first
3. If we recycle, we will reduce the garbage
4. If you call the tourist agency, they will explain to you more clearly
5. If you be calm, everything will be alright
6. If you don't be careful, you will cause the accident
7. If you promise return my book next week, I'll let you borrow it
8. If Peter study hard, he will pass the exam
9. If you work too much, you will tired
10. If he buy recycled products, he can do a part to save the environment