— Did you happen to see _______ black and _______ white cat?— Are they missing? I told you to take care of them.A.a; 不填B.the; 不填C.the; theD.a; the
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C解析Are they missing? 中的代词they 是一个很重要的信息词,它表明上文中的 _______ black and _______ white cat 是两只猫而不是一只猫,所以C。the black and white cat 可视为 the black cat and the white cat 之省略。若选A,则表示“一只黑白相间的猫”。