Ответы
1. Has your mum ever ridden a motorbike?
No, she hasn't. My mum has never ridden a motorbike.
или
Yes, she has. My mum rode a motorbike when she was 20.
2. Have you ever seen a snake in the wild?
No, I haven't. I have never seen a snake in the wild.
или
Yes, I have. I saw it last year.
3. Has your class ever travelled abroad?
Yes. My class has travelled abroad.
или
No, my class hasn't travelled abroad.
4. Have your grandparents ever travelled by helicopter?
No, my grandparents have never travelled by helicopter.
5. Has your best friend ever tried skiing?
Yes, he has. My best friend tried skiing last winter.
6. Have you ever won a holiday?
No, I haven't. I haven't won a holiday.
7. Have you and your friends ever been on a yacht?
No, my friends and I have never been on a yacht.
8. Have you ever had an accident on a trip?
Yes, I have. I've had an accident on a trip.
или
No, I haven't. I haven't had an accident on a trip.