Rewrite these sentsnces , using 'if ' construction . 
        1 He smokes so much , perhaps that's why he can't  get rid of his cough

=> if he smokes so much, he won't get rid of his cough 
         2 She is very shy , that's why she doesn't enjoy parties 

=> if she wasn't shy, she would enjoy parties
       3 I haven't the right change so we can't get tickets from  the machine 

=> if i had the right change, we could get ticket from the machine
      4 They speak French to her , not English , so her Eghlish doesn't improve 

=> if they spoke english to her, her english would  improve
     5 He doesn't work overtime , so he doesn't earn as much as I do

=> if he worked overtime, he would earn as much as i do
      6 My number isn't in the directory so people don't ring me up 

=> if my number was in the directory, people would ring me up
     7 He is very thin perhaps that't why he feels very cold 

=> if he wasn't thin, he wouldn't feel cold
    8 I'm far , that't why I can't get through the bathroom's window 

=> if i wasn't far, i could get through the bathroom's window
    9 He doesn't help me , posible because I never ask him for help 

=> if i asked him for help, he would help me 
  10 I can't drive so we can't take the car  

=> if i could drive, we could take the car.

1. He smokes so much, perhaps that's why he can't get rid of his cough.

⇒ If he smokes so much, he won't get rid of his cough.
2. She is very shy, that's why she doesn't enjoy parties.

⇒ If she wasn't shy, she would enjoy parties.

3. I haven't the right change so we can't get tickets from the machine.

⇒ If I had the right change, we could get ticket from the machine.

4. They speak French to her, not English, so her Eghlish doesn't improve.

⇒ If they spoke English to her, her English would improve.

5. He doesn't work overtime, so he doesn't earn as much as I do.

⇒ If he worked overtime, he would earn as much as I do.
6. My number isn't in the directory so people don't ring me up.

⇒ If my number was in the directory, people would ring me up.

7. He is very thin perhaps that't why he feels very cold.

⇒ If he wasn't thin, he wouldn't feel cold.

8. I'm far, that't why I can't get through the bathroom's window.

⇒ If I wasn't far, I could get through the bathroom's window.

9. He doesn't help me, posible because I never ask him for help.

⇒ If iI asked him for help, he would help me.
10. I can't drive so we can't take the car.

⇒ If I could drive, we could take the car.