Joan said she _______ that there was something wrong with the machine.A、had foun

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问题 Joan said she _______ that there was something wrong with the machine.

选项 A、had found
B、has found
C、finds
D、would find

答案 A

解析考查从句的时态。主句是一般过去时，而从句中的动作发生在主句的动作之前，因此要用过去完成时。A项had found正确。

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