Verified answer

1. Yes, I've been there.  

2. Yes, I've seen a clown.

3. No, I've never been there.

4. have you ever found a bird's eggs?

- No, I've never found them before.

5. Have you ever climbed a mountain?

- No, I've never climbed a mountain.

6. Have you ever hidden from a wolf?

- No, I've never done that./I've never hidden from a wolf.