Have you ever gone snorkeling?
Have you met Julia?
How long have you lived in Washington, DC?
We are thinking of going to the Rivera exhibit on Sunday.
If you ... time to help me with the moving, I ... my cousin to come.
Have you ... the final oral test yet?
I think studying languages is ...
I ... to become famous.
The kids are still at school. Could you please ...?
A: It´s so cold in here.B: It is! Wait! ... turn the air conditioning off.
A: I´ve run out of toothpaste.B: Don´t worry. I can buy ... on my way to work.
We ... dinner when the telephone rang.
That is the ... restaurant I´ve ever been to.