Your money could better use instead of idle in the bankA. put to; being leftB. be put t

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A. put to; being left
B. be put to; leaving
C. put to; leaving
(答案→)D. be put to; being left
解析：考察语态。句意：你的钱应该更好的利用，而不是闲置在银行。句中钱是前后两个动作的对象，故用被动语态，介词of后接名词或动名词，故选D。