In those days, he would go to Mr. Black and his family, .A. where he was treated as part o

In those days, he would go to Mr. Black and his family, .
A. where he was treated as part of them
B. for whom it was good
C. that was the most important part of his life
D. with whom he had a wonderful time

A. where he was treated as part of them B. for whom it was goodC. that was the most important part of his life(答案→)D. with whom he had a wonderful time解析：考查定语从句，这是非限制性定语从句，不能用that引导。先行词是his family，他的家人，A项也不对，B项意义不对，D项符合句意：在那些日子里，他会和布莱克先生和家人一起，他们在一起度过很愉快的时光。选D。

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