I.

1. if you try your best, you will be successful.

2. if he review the leson carefully, he will pass the exam 

3. if we do exercises regularly, it will make us healthier

4. if we recycle, we will save natural resources 

5. if you don't get out of my house, i'll call the police / if you get out of my house, i won't call the police.

6. unless you rest yourself, you will be ill

7. if you are careful, you won't lose all the money/ if you are not careful, you will lose all the money

 8. if you come home late, your mother will punish you/ if you don't come home late, your mother won't punish you.

9. if you eat a lot of green fruit, you will be sick.

10. giống câu 4

II.

1. as it tool a lot of time to drive, he liked to take underground.

2. because it was cold, i turned the heating on. 

 because of the cold, i turned the heating on.

cho mik xin 5 sao ạ