1)))
1 started
2 have you seen
3 have lost
4 hasn't tidied
5 have bought
6 built
7 have you taken
8 came
9 haven't worked
10 did you do
2))))))
1 have been living in London for
2 has been a teacher since
3 haven't been learning French for
4 has had a new car since
5 haven't been playing football since