=>
14. If she weren't very shy, she would enjoy the party.
15. If this exercise weren't too difficult, the students could do it.
16. If I had the right change, I could get tickets from the machine.
17. If he worked overtime, he would earn as much as I do.
18. If I had a map, I could direct you.
19. If they cleaned the windows, they would not look rather dark.
20. If you didn't work too fast, you wouldn't make many mistakes

21. If I had seen the signal, I would have stopped.
22. If you don't keep silent, you won't understand the lesson.
23. If you don't take raincoat, you will be wet.
24. If you don't go right now, you'll be late for class.
25. Unless that blue jacket is too expensive, I will choose it.
26. Unless it rains, we will go for a walk.
27. Unless I go on holiday, I will buy a bike.
28. Unless I have enough time, I won't visit them.
29. Unless Joe studies hard, he will fail the examination.
30. Unless Mike invites me, I won't come to his party.

14. If she weren't very shy, she would enjoy the party.
17. If he worked overtime, he would earn as much as I do.
18. If I had a map, I could direct you.

22. If you don't keep silent, you won't understand the lesson.
23. If you don't take raincoat, you will be wet.
24. If you don't go right now, you'll be late for class.
25. Unless that blue jacket is too expensive, I will choose it.
26. Unless it rains, we will go for a walk.
30. Unless Mike invites me, I won't come to his party.

Chúc bạn học tốt nhé!