根据句意，用括号内所给词的适当形式填空。

6. On my way home I met a famous _  _(act) yesterday.

7. Who _______ (teach) you English last term?

8. We went _______ (camp) on our last school trip.

9. She can’t decide what             (buy) him as a birthday gift.

10. ________(lucky) I don't have enough money to travel.