Shewilltelluswhyshefeelssostrongthateachofushas  arole

问题详情：

She will tell us why she feels so strong that each of us has   a role________in making the earth a better place to live in.

A．to have played  　                B．to play

C．to be played 　                   D．to be playing

【回答】

B

知识点：非谓语动词

题型：选择题