Biến đổi Unless= if …….not. 1. If Andrew is not lazy, he will pass the final examination. (unless) → 2. John will not catch the train unless he runs more quickly. (If) → 3. The tree will die if it isn’t watered every day. (unless) → 4. Life won’t be very easy if we don’t earn lots of money. (unless) → 5. If you don’t practice more often, your English won’t be better. → 6. Jack will be dismissed if he doesn’t try to work harder. →

Để biến đổi câu từ "If" sang "Unless", chúng ta có thể thực hiện như sau:

1. Unless Andrew is lazy, he will pass the final examination.

2. If John doesn't run more quickly, he will not catch the train.

3. Unless the tree is watered every day, it will die.

4. Unless we earn lots of money, life won't be very easy.

5. Unless you practice more often, your English won't be better.

6. If Jack doesn't try to work harder, he will be dismissed.

If Jack doesn't try to work harder, he will be dismissed.

Unless you practice more often, your English won't be better.

Unless we earn lots of money, life won't be very easy.

The tree will die unless it is watered every day.