—Oh, you have a headache and a cough. _______ have you been like this?—Three days.A. How long B. How soon C. How often
I don’t like this pair of glasses. Would you show me ________?
It takes about _________ to travel from Garden City to Beijing by plane.
_________ interesting our school life is!
The students should _________ when the teachers give the lessons.
There’re enough apples and bananas at home. You _______ buy any fruit.