BÀI TẬP ĐƠN GIẢN GIÚP PHÂN BIỆT IF VÀ UNLESS
Chọn if hoặc unless điền vào chỗ trống trong các câu sau:
1. Don't interrupt the meeting ___ it's an emergency. (if/unless)
2. He must study ___ he doesn't want to flunk the course. (if/unless)
3. Sign the document only ___ you read it carefully. (if/unless)
4. I'll punish you ___ you break one of my favorite vases. (if/unless)
5. ___ you ask me to sit somewhere else, I'll sit here. (if/unless)
6. I'll go to the beach with you ___ it rains this weekend. (if/unless)
7. ___ we learn from our mistakes, we may repeat them. (if/unless)
8. ___ you love her, marry her. (if/unless)
9. ___ you need me, just give me a call, and I'll be there in no time. (if/unless)
10. ___ she works hard, she won't get a promotion. (if/unless)
11. He shouldn't drive ___ he doesn't have a driver's license. (if/unless)
12. ___ he moves to another country, it'll probably be to Australia. (if/unless)
13. Just let it go ___ you don't want to be involved in any argument. (if/unless)
14. You won't be able to describe the picture ___ you look at it carefully. (if/unless)
15. Life on the planet will be impossible ___ we don't fight against air and water pollution. (if/unless)
16. Don't do it ___ you're not sure of the consequences. (if/unless)
17. I'll go to the concert with you tonight ___ my boss asks me to work overtime this evening. (if/unless)
18. ___ you don't understand the exercise, I'll try to help you. (if/unless)
19. ___ you ever come to California, feel free to visit us. (if/unless)
20. ___ she does well in the interview, she won't be accepted in the Ph.D. program. (if/unless)
Đáp án: 1. unless 2.if 3.if 4.if 5.unless 6.unless 7.unless 8.if 9.if 10.unless 11.if 12.if 13.if 14.unless 15.if 16.if 17.unless 18.if 19.if 20.unless
