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
