1.1. The bill in'tright. They (make) have made a mistake. have made
2. Don't you want to see this programme? It has started (start)
3. I (turn)have turned the heating on. It'll soon get warm in here.
4.Have they (pay) paid money for your mother yet?
5. Someone (take) has taken my bicycle.
6. Wait for few minutes, please! I (finish) have finished my dinner.
7.Have you ever (eat) eaten Sushi
8.She (not/come) hasn't come here for a long time.hasn't come
9.(work) have worked here for three years.
10,Have ....... been
11.Have done
12. have just seen
13.have just decided