II. Use UNLESS instead of IF. 1. If you are not careful, you will cut yourself with that knife. 2. If you do not like this one, I’ll bring you another. 3. I’ll not be able to do any work if I do not have a quiet room. 4. If she does not hurry, she’ll be late. 5. If we had more rain, our crops would be better. 6. The crops would have been ruined if the flood had risen higher. 7. If you had not sneezed, he wouldn’t have known that we were there. 8. If she did her hair differently, she would look quite nice. 9. If John had played for our football team, we would not have lost the game. 10. If I won a big prize in a lottery, I’d give up my job.

Cách làm:
- Đọc kỹ câu đề bài và hiểu nghĩa của từ "UNLESS".
- Thay các "IF" trong câu ban đầu bằng "UNLESS", sau đó điều chỉnh cấu trúc câu để nghĩa không thay đổi.

Câu trả lời:
1. Unless you are careful, you will cut yourself with that knife.
2. Unless you like this one, I’ll bring you another.
3. I’ll not be able to do any work, unless I have a quiet room.
4. Unless she hurries, she’ll be late.
5. Unless we had more rain, our crops would be better.
6. The crops would have been ruined, unless the flood had risen higher.
7. Unless you had not sneezed, he wouldn’t have known that we were there.
8. Unless she did her hair differently, she would look quite nice.
9. Unless John had played for our football team, we would not have lost the game.
10. Unless I won a big prize in a lottery, I’d give up my job.

Unless she hurries, she’ll be late.

I’ll not be able to do any work unless I have a quiet room.

Unless you like this one, I’ll bring you another.

Unless you are careful, you will cut yourself with that knife.