3. I... to ... medicine and food.
have...buyed
ОО
had...bought
had...buy​

2why don't you explain everything to him? if you (do not tell) him the truth, i'm sure you (will regret) it one day.3 jennifer was here not long ago. if you (had come round) earlier, you (would have seen) her. 4 apparently, the ferry company are planning to close the port in this town. if (happens), the town (will lose) a great deal of money.5 i (would help) you with it if i (had) more time but i'm afraid i haven't got any spare time at all at the moment.6 .the government is expecting to win the next election, but if (loses), the prime (will resign) from politics.7. i am so glad that you took me to your friend's party. if we (had not gone) there, i (would have never met) adrian.8. it's ridiculous that trains are so expensive. if fares (were) cheaper, i'm sure more people (would use) the train and leave their cars at home.9. if she (gets) that job she's applied for, she (will be) delighted. and i think she's got a good chance of getting it.10. fortunately the explosion took place at night when the streets were empty. (would have been) a disaster if (had happened) in the middle of the day.11. the talks between the two leaders keep breaking down. if they (break down) again, it is possible that there (will be) a war between the two countries.12. if alison (knew) anything about car mechanics, i'm sure she (would help) us fix the car, but i think she knows even less than we do.13. they've been married for twenty years now but i don't think she (would have married) him if she (had known) what a selfish man he was.14. children spend too much time watching television and playing computer games. i'm sure they (would be) happier if they (spent) more time playing outside.15. jamie has everything he wants but he's always moaning. i'm sure that if i (had) so much money, i (would not moan) all the time.