1.What would happen if water pollution stopped?

2.Would we be happy if air pollution in the world were a better place?

3.If there were no pollution,would the world be a better place?

4.If I were you,I would take these bottles to the bottle bank.

5. If people didn't really care about the environment, they wouldn't try to save it.

6.The river wouldn't be so polluted if the factories didn't dump the waste into it.

7.We would be less worried if oil spills didn't have such destructive effects.

8.If we destroy the ozone layer, what would save us from the UV rays?

      Giải thích:

* Câu điều kiện loại 2: chỉ điều kiện không thể xảy ra ở hiện tại hoặc tương lai; điều kiện chỉ là một giả thiết, một ước muốn trái ngược với thực trạng hiện tại.

*Cấu trúc:

If + S + V (quá khứ), S + would /could/might + V (nguyên thể)