Ответ:
1) I don't mind (travelling) by train.
2) He has decided (to sell) his old car.
3) Where do you want (to go) at the weekend?
4) Don't you enjoy (playing) volleyball?
5) We can't afford (buying) a new house.
6) I want to give up (biting) my nails.
Write the correct form
7) You should avoid (being) impolite to people!
8) My sister is learning _____________ (to cook).
9) Have you finished _____________ (doing) your homework?
10) Please stop _____________ (making) that noise!
11) She would like _____________ (to see) Mr. Smith.
12) They agreed _____________ (to come) to our house.