REVIEW
21. Because he sits around too much, he isn't fit
-> if he
22. Rita was exhausted because she didn't get any sleep
-> if rita
23. She's very thin; perhaps that's why she feels cold so much
-> if she
24. He never polishes his shoes, so he never looks smart
-> if he
25. He can't park near his office;that's whyvhe doesn' come by car
-> if he
26. My house is guarded by two big dogs. That's the only reason it isn't broken into every night
-> if my house
27. The flats were not clearly numbered, so it was very difficult to find them
-> if the flats
28. I don't know her email address so i can't tell you
->if i
29. She doesn't live in london because she doesn't know anyone there
-> she would
30. I couldn't live in the country because i couldn't find a job here
->i could
31. She had no time to play with her children because she worked in the evening
-> if she
32. He doesn't see the signal so he doesn't stop his car
-> if he
33. Marry doesn't have enough money so she can't buy a new car
-> marry could
34. Prepare the lesson well or you won't understand it
-if you
35. He doesn't apply for thr job because he doesn't have enough qualification
-> if he
36. Hurry up or we will be late for the exam
-> if we
37. They do not understand you because you do not often talk to them
-> unless
REVIEW
21. Because he sits around too much, he isn't fit
-> if he didn't sit around too much, he woudn't fit
22. Rita was exhausted because she didn't get any sleep
-> if rita had got sleep,she wouldn't have been exhausted
23. She's very thin; perhaps that's why she feels cold so much
-> if she weren't thin,she wouldn't feel cold so much
24. He never polishes his shoes, so he never looks smart
-> if he polished his shoes, he would loook smart
25. He can't park near his office;that's whyvhe doesn' come by car
-> if he could park near his office,he would come by car
26. My house is guarded by two big dogs. That's the only reason it isn't broken into every night
-> if my house weren't guarded by two big dogs.,it would be broken into every night
27. The flats were not clearly numbered, so it was very difficult to find them
-> if the flats had been clearly numbered, it wouldn't have been very difficult to find them
28. I don't know her email address so i can't tell you
->if i knew her email address sI could tell you
29. She doesn't live in london because she doesn't know anyone there
-> she would know someone there if She lived in london
30. I couldn't live in the country because i couldn't find a job here
->i could live in the country if i could find a job here
31. She had no time to play with her children because she worked in the evening
-> if she hadn't worked in the evening,she would have had time to play with her children
32. He doesn't see the signal so he doesn't stop his car
-> if he saw the signal ,he wouldt stop his car
33. Marry doesn't have enough money so she can't buy a new car
-> marry could buy a new car if she had enough money
34. Prepare the lesson well or you won't understand it
-if you don't Prepare the lesson well ,you won't understand it
35. He doesn't apply for thr job because he doesn't have enough qualification
-> if he had enough qualification.he would apply for thr job
36. Hurry up or we will be late for the exam
-> if we don't Hurry up ,we will be late for the exam
37. They do not understand you because you do not often talk to them
-> unless you often talk to them,They do not understand you