--Listen! Someone is singing in the next room．Who         it be? Is it Wei Fang?

--No．It         be her．She is at school now．

A．can; may not

B．must; mustn’t

C．can; can’t

D．may; won’t

项目章程包括下列哪一项？（）

A.项目预算汇总

B.详细的产品范围说明

C.范围基准

D.项目管理计划