9 If he studied hard he would pass the exam

10 If susan didn't eat too much she wouldn't be overweight

11 If we had had enough money we would have gone on holiday

12 If he had hurried he wouldn't have missed the train

13 If today weren't thursday we could go swimming

14 if I buy that book I will give it to you

15 If the air were pure they would feel healthy

16 If it had been fine yesterday we would have had a picnic

17  if my uncle hadn't been poor he would have bought that house

18 if jack saw the sight he could tell you about that

19 if those athletes had trained hard  they could have broken past records

20 if the weather were fine now we could go for a walk

21 If my brother has enough money he will buy a new bicycle

22 If he didn't attend class regularly he wouldn't make some progress in learning english

23 if yesterday had been a nice day our picnic would not have been put off

24 if this man hadn't been underpaid he would have enjoyed his work

25 if there were enough water in the land rice plants would grow well

26 if she hadn't broken the promise he wouldn't have been disappointed

27 If you ask the teacher he will explain it to you

28 if my father had got up early he wouldn't have missed the five o'clock train

29 if health facilities weren't ready for everybody we couldn't now be prevented from dangerous illness