—Could I ask you some personal questions?—
---Do you know where Mary is? ---No, I don’t. I ____ her since last Sunday night.
is not easy to find a best friend in a new place.
The student ____ can speak good English is my best friend.
The kids were very happy as they could get tickets .
-- Do you mind my opening the window? It's a bit hot in here.---___________, actually.