Bài 4:  Điền liên từ thích hợp vào chỗ trống để hoàn thành những câu sau:

1.   __________ it’s pouring with rain, we are going for a walk in the park.

2.   __________ she hands in the assignment before Tuesday, she will get very bad mark.

3.   He decided to trust Jim this time __________ he was not an honest man.

4.   Jennifer decided to break up with Peter __________ he didn’t spend much time with her.

5.   Danny bought a new car __________ his old car was still in good condition.

6.   I will be in great trouble __________ my mother knows my final test scores.

7.   Janice will have finished the report __________ the time you receive the letter.

a.   The concert will be canceled __________ no more tickets are sold.

9.   Children are not allowed to enter this place __________ they are accompanied by adults.

10. You should bring think coats __________ the temperature falls at night.

11. __________ my sister doesn’t like eating salad, she eats it regularly to keep fit.

12. I won’t come to Jim’s party __________ he invites me.

13. __________ you tell me the truth, I can’t help you.

14. _________ the fire fighters arrived, the fire had already been put out by the local residents.

15. You can leave early __________ you want to.