GWD-24

花子落落

A recent United States Census Bureaureport shows that there are more than three times as many households where thechildren and grandchildren are living in their grandparents’ home ascompared to households where the grandparents are living in theirchildren’s or grandchildren’s home.
A.    as compared to households where the
B.    as there are households where the
C.   as those whose
D.   than compared to those where the
E.    than there are whose


为什么是B？这个there are用在这里好么？前面的as也没见there are吖~而且there are 不是表示自然存在么？这怎么会是自然存在呢？
我选的C有什么错么？those指代households~

fengshou

前面有there are呀

THERE ARE more than three times as many households

花子落落

那C呢？those直接指代households吖~

fengshou

可是whose呢？whose一般指人的所有吧