Ответ:
A B
1 1
I didn't have time to go out for any lunch. If I'd known, I would have bought a sandwich on the way here.
2 6
Nobody told me you were in hospital. If I'd known I would have come to visit sooner.
3 5
The barbecue was OK but if the weather had been better, it would have been fantastic.
4 7
I'd completely forgotten. If you hadn't reminded me, I wouldn't have come.
5 2
If you had told me you needed some cash, I would have lent it to you.
6 4
Larry was driving too fast. The accident wouldn't have happened if he hadn't been going so fast.
7 3
I would have told you about it but I thought you knew.