`1`. Recycle.

`2`. Won't dump.

`3`. Will be.

`4`. Will save.

`5`. Will have.

`6`. Were.

`7`. Will be.

`8`. Had.

`9`. Wouldn't be.

`10`. Would grow.

Cấu trúc :

Câu đk loại 1 : If + hiện tại đơn, tương lai đơn.

Câu đk loại 2 : If + quá khứ đơn, tương lai trong quá khứ.

`#Study well`

1. If we ( recycly ) ...recycle......... more , we will help the Earth

2. Factories ( not dump ) ..won't dump........... waste into rivers if the government fine them heavily

3. If people travel to work by bus , there ( he ) .will be............... fewer ear fumes

4. We ( save ) ...will save............ thousands of trees if we don't waste paper

5. If we use water carefully , more people ( have ) ..will have............ fresh water

6.If I you (be)...were..... the president, what would you do to help the environment?

7. They get sick so often. If they excercise more, they (be) ....will be.....heathier.

8. Quan's mother is unhappy. If Quan tidied her room every day. her mother (not be) ....wouldn't be.... so upset.

10.There isn't a garden at house.If there were, we (grow)....would grow..... vegetables.