Question

（2011·江西南昌一中月考）She will tell us that each of us has a role ______ in making the earth a better place to live．

　　　 A．to have played 　 B．to play　　　 　 C．to be played　 D．to be playing

Answer 1

B考查不定式的用法。此处不定式短语作定语修饰a role。句意：她将告诉我们我们每个人在使地球成为更适宜居住的地方活动中起着作用。