1- if I were you I would study harder
2- if Peter went into sport he would look fit
3- if my friends weren't exhausted we would meet tonight
4- if his granny watched horror films she wouldn't be afraid of ghosts
5- if it wasn't hot they wouldn't spend the day on the beach
6- I would believe him if he didn't tell me lies
7- if she wanted to find a better job her salary wouldn't be low
8- she would lend John money if he paid back
9- if the cafe wasn't open we wouldn't have a cup of tea together
10- if I knew this man I would introduce him to you