ПОМОГИТЕЕ ПЛИИЗ С АНГЛ ЯЗ

Have you ever ridden a horse
have you ever seen an elephant
have you ever made cornflakes
have you ever climbed a mountain
have you ever been to london
no,i havent. I have never been there.
has john ever travelled by plane
no,he hasnt.
rose has never swum in the sea.Have you ever swum in the sea