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题库 / Prep2007E1-SC-105
Even though it was not illegal for the bank to share its customers' personal and financial information with an outside marketing company in return for a commission on sales, the state's attorney general accused the bank of engaging in deceptive business practices by failing to honor its promise to its customers to keep records private.
by failing to honor its promise to its customers to keep
by its failure of honoring its promise to its customers to keep
in its failing to honor its promise to its customers of keeping
because of its failure in honoring its promise to its customers in keeping
because of its failure to honor its promise to its customers of keeping
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1. by/in/because of 辨析：
by doing表示做某事的途径，比如曼哈顿论坛里ron的例句：I prepared for the test by reviewing takeaways on the MGMAT forums.本句中by failing to修饰engaging in，意思是银行通过不守约定参与欺诈行为。
in doing表示在做某事的过程中做了某事，通常in前面的动作是后面动作的一部分，比如另一例句：I solved all the problems in OG12 in preparing for the GMAT.无论修饰哪个名词都说不通。
because of 表示因果，考虑到这里似乎可以解释为修饰accused，律师因为没有履约而指控其欺诈行为。但是显得有些重复，因为本身deceptive practice 就是 failing to honor，先存疑。
综上，排除C选项
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