He had little idea that it was getting so late, ___________ ?
_____, the students insist that he _____ separated from his desk mate, who is very naughty.
_____ to get a ticket for the concert, George has been standing in a queue for two hours.
— I’m terribly sorry to have put you to so much trouble.— _____. You didn’t mean to, did you?
She devoted herself entirely _____ helping the children who suffered a lot in the earthquake.
—Turn the TV down, will you?— _______—I asked you to turn the TV down.