Betty: Lingling, have you ever been to the US?

Lingling: No, I haven’t. I’ve always wanted to go there.

Betty: Would you like to come and visit me next year?

Lingling: That sounds wonderful! I’d love to.

Betty: I haven’t asked my parents, but I’m sure they’ll say yes. Have you ever travelled by plane?

Lingling: Yes, I have.

Betty: Did you enjoy it?

Lingling: Yes, it was very exciting, but I was quite tired.