It looks as if they are going to us a lot of money for the concert hall.A. demand　B. cost

问题补充：

It looks as if they are going to us a lot of money for the concert hall.

A. demand

B. cost

C. charge

D. ask

答案：

A. demand

B. cost

(答案→)C. charge

D. ask

解析：charge 在这里表示“收费”； I want get my mobile phone charged.charge则表示“充电” 。