1 B: Well, (I am living) in a friend's house at the moment. Luckily (I have found) a place of my own now, but I can't move in until next week.
2 B: No, it isn't mine (I think) (it belongs) to Peter.
3 B: Well, (I am using) it to work out these figures at the moment (I want) to finish doing them, now that (I have started).
4 B: The last few weeks (I have had) so little time. (I have been rushing) around all the time.