1. Unless you stop eating much, you won't lose weight.

2. If you don't have a license, you can't drive.

3. If Mr. Brown was a doctor, he could treat people.

4. If you don't get a visa, you can't visit the USA.

5. If the woman saw her son, she could take him to the zoo.

6. Unless it rains soon, a lot of our crops will be lost.

7. If my brother come here next summer, I will introduce him to you.

8. If he had time, he could help you.

9. If his father was rich, he would afford for his study.

10. If the weather wasn't awful, we could go swimming.

2. Rewrite the following sentences.

Unless (conjunction) = if not : trừ khi

1. Unless you stop eating much, you won't lose weight.

weight (n): trọng lượng

2. If you don't have a license, you can't drive.

license (n): giấy phép

If + S + V (present simple), S + will/ can / may/... + V +... 

3. If Mr. Brown was a doctor, he could treat people.

If + S + V (past simple), S + would/ could/ might + V.inf +... 

4. If you don't get a visa, you can't visit the USA.

visa (n): hộ chiếu

5. If the woman saw her son, she could take him to the zoo.

6. Unless it rains soon, a lot of our crops will be lost.

crop (n): vụ mùa

7. If my brother come here next summer, I will introduce him to you.

introduce (v): giới thiệu

8. If he had time, he could help you.

9. If his father was rich, he would afford for his study.

afford (v): to be able to buy or do something because you have enough money or time.

10. If the weather wasn't awful, we could go swimming.

awful (adj): extremely bad or unpleasant