Bài 4

Chọn từ thích hợp để hoàn thành câu.

1. I'll put my umbrella in my bag in case / provided that it rains later.

2. - Chọn -A. UnlessB. As long as you pay me in advance, I’ll buy the tickets for you.

3. I'm going to get fat - Chọn -A. ifB. unless I stop eating so much chocolate.

4. You must follow the instructions accurately - Chọn -A. in caseB. unless you want to risk damaging the machine.

5. When I travel on planes I always put my toothbrush in my hand luggage - Chọn -A. in caseB. if my suitcase gets lost.

6. Ice skating is fun - Chọn -A. as long asB. when you are willing to fall over a lot!

7. Dear Mr Brown, I am writing to inform you that your library books are overdue. - Chọn -A. Provided thatB. When you return them immediately, you will not be fined.

8. I've just signed the contract for the job in Indonesia, starting in April. - Chọn -A. WhenB. If I move there, I'll have to sell my car.

9. I wouldn't stay out in the sun too long - Chọn -A. as long asB. if I were you.

10. I don't really like going to parties - Chọn -A. unlessB. as long as I know most people there.