1-My sister has had/has been having a shower for twenty minutes. The floor is still wet.
2-Hi Tom! I haven't seen/haven't been seeing you for ages!
3-Michael has learnt/has been learning French for three months and he loves it.
4-Melissa has bought/has been buying a new dress for the party.
5-What are you doing? -'I have watched/have been watching television since I arrived'.
6-Do you like my living room? I have put/have been putting new curtains.
7-I'm not very well. I have been/ have been being to the doctor's twice this week.
8-Sorry, I'm late. How long have you sat/have you been sitting here?
9-Carol has seen/has been seing this film many times. She loves it.
10-She's a good dancer. She has won/has been winning two championships already.
11-Sam is not here. He's gone. He has travelled/has been travelling for months.
12-Look at my jacket. I have had/have been having it for only three days.