Ответ:

1) I haven't finished school yet.

2) I have just lunched

3) I have already gone on holiday this year

4) I have never broken an arm or a leg

5) I haven't gone yet to the dentist's this year

6) I haven't done anything exiciting this week

7) I have never met anyone famous

8) I haven't traveled on a plane this year

9) I haven't done any sport this week

10) I have never stolen anything