Rewrite each sentence below so that it stays the same in meaning as the given one

----- Nội dung dịch tự động từ ảnh -----
III. Rewrite each sentence below so that it stays the same in meaning as the given one.
1. Save energy or it will be used up soon. => If we
Or: If we don’t
2. Throw trash into the right places; otherwise, you will pollute the environment.
=> If you .....
=> Or: If you don't ......
3. She will not buy that book because it is too expensive.
...
..
=> If that book ...
4. It is raining, so we can't have lunch in the garden.
=> If it ...
5. Plant more trees and we will help to protect the environment.
=> If we ...
6. I won't go to the beach tomorrow unless I feel better
=> If I..
7. I'm not a doctor, so I can't save the child's life.
> If I .....
8. I don't have enough money, so I can't buy that dictionary.
=> If I ........
9. If you are not careful, you will cut yourself with that knife.