—Could I borrow your camera?—_________, but please give it back by Saturday.
—Mum.Can we go to the art museum tomorrow? —Sure.But first we should find out .
—Did you know ______ just now? —Their plane didn't take off on time because of the thick fog.
—Excuse me, could you tell me ______? —Sorry, I don’t know. I’m new here.
---Who can tell me_______? ---Every 15 minutes.
The newly-designed car is on show now. I wonder .