问题描述：
2004考研英语真题完形问题
More families consist of one-parent households or two working parents ;consequently,children are likely to have less supervision at home （ ） was common in the traditional family structure.
为什么括号处不能用which?那么句意为“ 孩子们可能有较少的监管,这种监管在传统家庭中是很普遍的.”
答案给的是than,than后面是不是省略了什么?
More families consist of one-parent households or two working parents ;consequently,children are likely to have less supervision at home （ ） was common in the traditional family structure.
为什么括号处不能用which?那么句意为“ 孩子们可能有较少的监管,这种监管在传统家庭中是很普遍的.”
答案给的是than,than后面是不是省略了什么?
问题解答：
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