When they got back, they found that the house ________ and a lot of things ________A.has been broken into, has been stolenB.had broken into, had stolenC.had been broken into, stolenD.has been broken into, stolen
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C解析根据题意，that从句中的谓语动作发生在主句的谓语动作found之前，故第一空要用过去完成时，又由于房子是被闯入的对象，故应用完成时的被动语态．另外，and后面的a lot of things是一个与前面的that从句并列的宾语，其后的“偷”应用过去分词作宾补，不可将and后面的部分看成是一个宾语从句，因为and连接两个宾语从句时，前面的连词that可省略，后面的that则不能省略．