Ответ:

2) Have you ever drived a car?

Yes, i have/No, i haven't

3) Have you ever eaten an unusual food?

Yes, i have/No, i haven't.

4) Have you ever participated in a contest?

Yes, i have/No, i haven't

5) Have you ever ridden a horse?

Yes, i have/No, i haven't

6) Have you ever celebrated your birthday with a huge party?

Yes, i have/No, i haven't