【填句补文】The typical person living alone is neither old nor lonely. ________. The majority of these people have chosen to live alone. They are responding to decreasing social pressure to get married and have a family.
A、This is a dramatic change from the extended families of just a couple of generations ago.
B、The growing number of women with good jobs has done much to increase the number of people living alone.
C、There's more pressure to get married nowadays.
D、In fact, a quarter of the 23 million single people in the U.S. are under the age of 35.
【正确答案】：D
【题目解析】：空格后句中出现代词“these people”，而空格前句出现的人是单数形式，因此判断空格处应该出现表意复数的人，从而与these people相呼应。而且空格前句提到了“年龄(old)”，所以判断D是答案，a quarter of the 23 million single people是复数名词，而且D中提到了年龄(35岁以下)。
