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.