`7` If you are careless, you will break the vase.

`8` If you litter the place around you, it'll be a junk yard.

`9` If Nam doesn't work hard, he won't pass the exam.

`10` If we buy recycled products, we can save the environment.

`11` Unless you keep quiet, I'll scream.

`-----`

`***` Câu điều kiện loại `1`:

`->` If/Unless + S + V(HTĐ), S + will/can/may + V

`->` Có thật ở hiện tại, tương lai

`-` If not `=` Unless: Nếu không

If 1:

If + S + am/is/are , S + will/can/shall + V1

If + S + V1/s/es , S + will/can/shall + V1

-------------------------------------------------

Unless: trừ khi = If ... not 

-------------------------------------------------

7. If you are careless, you will break the vase.

8. If you litter the place around you, it will be a junk yard.

9. If Nam has to work hard, he will pass the exam.

10. If we buy recycled products, we can save the environment.

11. Unless you keep quiet, I'll scream.

12. If you don't study hard, you will fail the final exam.

`color{orange}{~LeAiFuRuiHuiBao~}`