They were angry because you______your promise.

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问题 They were angry because you______your promise.

选项 A、didn’ t keep
B、have not kept
C、don’ t keep
D、had not kept

答案D

解析 主句用过去时,原因状语从句的动作发生在“生气”这件事前,所以时态需要用过去完成时。故选D。
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