Chuyển câu cho nghĩa không đổi

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11. He will pay me tonight; I will have enough money to buy a car.
- If.
12. He smokes too much; that's why he can't get rid of his cough
13. She is very shy, so she doesn't enjoy the party
- If.
14. He doesn't take any exercises. He is so unhealthy
If
15. We can't get the ticket because I don't have the right change.
-If .
16. Study hard or you won't pass the exam
- If .
17. Don't be impatient or you will make mistakes
- If ...