помогите очень сложная зпдача

2. Have you ever flew on a plain? no, i havent.

3. have you ever seen an elephant in real life? yes, i have.

4. have you ever gone to a concert? yes, i have.

5. have you ever traveled on a train? yes, i have.

6. have you ever built a snowman before? yes, i have.

7. have you ever been on TV? no, i havent.