Loại 1:
- if we pollute the water, we will have no fresh water to use
- If you don't ask your mother's permission, don't go out
- If you feel this bag heavy, i will give you a hand
- if we have money, we will buy this car
- if you finish the exercises, you can do the next one
Loại 2:
-If he refused, I would be very happy
- If we lived in a city, we could get access to the Internet easily
- If the weather weren't bad, we would go swimming
- If I were in school, I would be studying now
- If they offered you the job, would you accept?