She will tell us why she feels so strong that each of us has a role________in making the earth a bet

题目简介

She will tell us why she feels so strong that each of us has a role________in making the earth a bet

题目详情

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
题型:单选题难度:中档来源:不详

答案

B
主要考查动词不定式的时态与语态。从句意看,整个动作发生在将来,to play作a role的定语,其间存在着逻辑上的动宾关系,又与句中的each of us存在着逻辑上的主谓关系,故动词不定式用主动形式表示被动意义。动词不定式to play意指将来的动作;to have played意指已经完成的动作;to be playing则强调动词不定式动作正在进行。
答案: B

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