Alice didn’t want her parents to know .
Up to now, thousands of red phone boxes, the old image of Britain, ________ due to mobile phones.
This is a promising company as its employees ________ to think outside the box and develop creative solutions.
I can't understand why he ________ so selfish. He isn't usually like that.
—How long have you been going to work on foot?—Since last month when I ________ from a heart attack.
Allen has decided that he will be an engineer by the time he ________ twenty.