问题
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
B:for whom it was good
C:that was the most important part of his life
D:with whom he had a wonderful time
正确答案是：
