(2013·长沙二模)—The research on the new flu virus vaccine is challenging  and demanding.Who do you think can do the job?

—________ my students have a try?

A．May

B．Must

C．Will

D．Shall

被称为“足球皇帝”的德国人是谁（）

A、贝肯鲍尔

B、巴拉克

C、克洛泽

D、克林斯曼