12D
1 We've finished decorating the flat.
2 I regret saying what I did.
3 Tessa decided not to go to work.
4 Do you mind helping me?
5 I'm beginning to get worried.
6 I can't afford buying a new car.
7 I hope to avoid making things worse.
8 Peter seems to have gone away already.
12E
1 The children couldn't wait to see their parents.
2 I cant' stand getting up in the dark.
3 I happened to see your brother yesterday.
4 The shop tends to open ten minutes late.
5 Do you fancy going for a walk?
6 The police carried on watching the house.
7 I'll never forget seeing Nelson Mandela.