Chắc chắn rồi! Dưới đây là các câu đã được biến đổi từ "unless" sang "if…not" và ngược lại.

1. **Unless** Andrew is lazy, he will pass the final examination.
→ If Andrew is not lazy, he will pass the final examination.

2. John will not catch the train **unless** he runs more quickly.
→ If John does not run more quickly, he will not catch the train.

3. The tree will die **unless** it is watered every day.
→ If the tree is not watered every day, it will die.

4. Life won’t be very easy **unless** we earn lots of money.
→ If we do not earn lots of money, life won’t be very easy.

5. If you don’t practice more often, your English won’t be better.
→ Unless you practice more often, your English won’t be better.

6. Jack will be dismissed **if** he doesn’t try to work harder.
→ Unless Jack tries to work harder, he will be dismissed.

7. **Unless** you study harder, you will fail the next exam.
→ If you don’t study harder, you will fail the next exam.

8. **Unless** he practices writing every day, he can’t improve his writing skills.
→ If he doesn’t practice writing every day, he can’t improve his writing skills.

9. **If** this man is not a driver, he can't help you move by car.
→ Unless this man is a driver, he can't help you move by car.

10. **If** you do not go out more often, you might fall ill.
→ Unless you go out more often, you might fall ill.

Hy vọng điều này giúp ích cho bạn! Nếu cần thêm gì, hãy cho tôi biết!