1. 1) с 2) a 3) b - has already made 4) c
2. 1) Watching 2) washing 3) reading 4) doing 5) visiting 6) leaving
3. 1) He never asks fir help, does he? 2) Let's go to the seaside tomorrow, don't we? 3) We are walking in the forest, aren't we? 4) My best friend has already got a new flat, hasn't he? 5) Her parents decided to divorce, didn't they? 6) There are many flowers in the vase, aren't there?