1.you will enjoy yourself if you (поедете в италию) 2.ask him if he (поедет в италию) 3.i don't know when he ( приедет из лондона) 4.i'll phone to him when he (приедет из лондона) 5.i'll talk to him if i (увижу его сегодня) 6.i'm not sure if i (увижу его сегодня) 7.if air pollution gets worce (никто не сможет отдохнуть) 8.if daniel trains hard (он одержит победу) 9.i shall not get up at 5 in the mornong if i (не сделаю уборку) 10.when you come to london(вы увидите много достопримечательностей)

1. You will enjoy yourself if you go to Italy.
2. Ask him if he goes to Italy. 
3. I don't know when he comes back from London.
4. I'll phone to him when he comes back from London.
5. I'll talk to him if I see him today.
6. I'm not sure if I see him today.
7. If air pollution gets worse, no one can have a rest.
8. If Daniel trains hard, he will win.
9. I shall not get up at 5 in the mornong if I don't do the cleaning.
10. When you come to London, you'll see many sights.

1. You will enjoy yourself if you go to Italy.
2. Ask him if he goes to Italy.
3. I don't know when he comes back from London.
4. I'll phone to him when he will come back from London.
5. I'll talk to him if I see him today
6. I'm  not sure if I will see him today.
7. If air pollution gets worse, no one can have a rest.
8. If Daniel trains hard, he'll win.
9. I shall not get up at 5 in the mornong if I don't do the cleaning.
10. When you come to London, you will see many sights.