Bài tập 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. (unless) →…………………………………………………………………………………………
6. Jack will be dismissed if he doesn’t try to work harder. (unless) →…………………………………………………………………………………………