Focused training will also play a role in enabling records ______ broken.A、beB、

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问题 Focused training will also play a role in enabling records ______ broken.

选项 A、be
B、to be
C、being
D、to have been

答案 B

解析 enable后跟不定式，同时不定式动词和其修饰的名词records之间是被动关系，故用不定式的被动形式，选项B正确。

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