1. had had....would have been 

2. had realised...wouldn't have accepted

7. were...would get

8. lived

9. would agree

10. won 

11. would buy

EXERCISE 3:

1) I had no maps, that's why I got lost. If I (have) had had a map I (be) would have been all right.

2) The job is much worse than I expected. If I (realise) had realized how awful it was going to be I (not accept ) would not have accepted it.

7) Look at poor Tom trying to start his car by hand again. If I (be) were new battery. Tom, I (get) would get a

8) l'd go to see him more often if I (live) lived nearer. with you.

9) If I knew you were right, I (agree) would agree with you

10) If I (win) won a lot of money, I would give up my job.

11) I (buy) would buy shares in that company if they were cheaper.