—Look at the man in the classroom! Is he Mr. White?
—No, it __________be him. He's eating in the dining hall.
A. can't B. mustn't C. may not D. needn't
At present, the students in China take more exercise. Most of them are ______ than before.
A. strong B. stronger C. strongest D. the strongest
—What a beautiful key ring! __________is it?
—Only 5 yuan.
A. How old B. How far C. How long D. How much
Jack will have a math test this afternoon. He needs a__________.
A. hat B. ruler C. radio D. camera
You are old enough to make decisions by __________.
A. himself B. herself C. yourself D. myself
There is __________backpack on the desk. It belongs to Tom.
A. a B. an C. the D. /