1. Why don’t study hard ? …………………………………………………………………………..
2. Keep silent or you’ll wake the baby up. …………………………………………………………
3. I don’t know the answer, so I can’t tell you. ……………………………………………………..
4. We got lost because we didn’t have the map. …………………………………………………….
5. My friend was so late, so he missed the train. ……………………………………………………
6. This car is too heavy for me to move.
7. Morning exercises make me feel healthy. ……………………………………………………….
8. The church bells keep me from sleeping. …………………………………………………………
9. Without air, we would die. …………………………………………………………………..........
10. I advise him to stop smoking. …………………………………………………………………….
11. Be calm, or you’ll make a wrong decision. ………………………………………………………
12.Without a visa, he couldn’t have come to that new country.……………………………………………………………………………………………………….
13.Today isn’t Sunday, so the students don’t go swimming.………………………………………………………………………………………………………..
14.Because you don’t leave immediately, I call the policeman.…………………………………………………………………………………………………………
15.I don’t know her number, so I don’t ring her up.…………………………………………………………………………………………………………
16.Go right now or you will be late for the train.…………………………………………………………………………………………………………17.As she is often absent from class, she can’t keep pace with her classmates.…………………………………………………………………………………………………………
18.I couldn’t write to Alice because I didn’t know her address. …………………………………………………………………………………………………………
19. The heavy rain kept everybody from going outdoors.…………………………………………………………………………………………………………
20. I didn’t watch TV last night because I was busy.…………………………………………………………………………………………………………
21.People don’t see the UFO, so they don’t call the National UFO Reporting Center. …………………………………………………………………………………………………………
22.Thu can’t swim, so she doesn’t go swimming in Lam Son Swimming pool.…………………………………………………………………………………………………………
23.His flight was delayed so he couldn’t be there on time.…………………………………………………………………………………………………………
24. Thanks to Lisa’s report, I was able to finish the project.…………………………………………………………………………………………………………
25.Without your help, I couldn’t overcome the problem.…………………………………………………………………………………………………………
26. She didn’t stop her car because she didn’t see the signal.…………………………………………………………………………………………………………
27. They do not understand you because you speak too fast.…………………………………………………………………………………………………………
28.He doesn’t apply for the job because he doesn’t have enough qualifications.…………………………………………………………………………………………………………
29. He never polishes his shoes, so he never looks smart.…………………………………………………………………………………………………………
30. Go right now or you will be late for the train. …………………………………………………………………………………………………………
1. Why don’t study hard ? …………If you studied hard, you would pass the exams ………………………………………………………………..
2. Keep silent or you’ll wake the baby up. ………If you dont keep silent,you'll wake the baby up.………………………………………
3. I don’t know the answer, so I can’t tell you. ……if I knew the answer, I could tell you………………………………………………..
4. We got lost because we didn’t have the map. …………if we had had the map, we wouldn't have got lost………………………………………….
5. My friend was so late, so he missed the train. ………if my friend hadn't been so late, he wouldn't have missed the train……………………………………………
6. This car is too heavy for me to move.
if this car was not heavy, I could move
7. Morning exercises make me feel healthy. ………if I didn't do morning exercises, I wouldn't feel healthy……………………………………………….
8. The church bells keep me from sleeping. ………If the church bells didn't ring, I would keep on sleeping. …………………………………………………
9. Without air, we would die. ……If there wasn't air, we would die.……………………………………………………………..........
10. I advise him to stop smoking. ………if he doesn't stop smoking, he will be unhealthy
11. Be calm, or you’ll make a wrong decision. ……………Be calm, or you’ll make a wrong decision. …………………………………………
12.Without a visa, he couldn’t have come to that new country.……If he hadn't had a visa, he couldn't have come to that country………………………………………………………………………………………………….
13.Today isn’t Sunday, so the students don’t go swimming.……if today were Sunday, the students would go swimming
14.Because you don’t leave immediately, I call the policeman.…If you left immediately, I wouldn't call the policeman…………
15.I don’t know her number, so I don’t ring her up.…………If I knew her number, I would ring her up