Rewrite these following sentences using IF construction
15. I haven't much time so I read very little
16. Hệ doesn't pay his staff property ; perhaps that's why they don't work well
17. I have no dog,so I don't like being alone in the house at night
18. He never shaves ; that's the only reason he looks unattractive
19. You work too fast ; that's why you make so many mistakes
20. I can't park near my office , that's why i don't come by car
21. I live a long way from the center ; that's why I'm late for work
22. People drive very fast. that's why there are so many accidents
23. English people speak very quickly. Perhaps that's why I can't understand them
24. My house is guarded by two Alsatian dogs. That's she only reason it isn't broken into every night
25. The flats are not clearly numbered , so it is very difficult to find anyone.