Things have changed quickly over the past decade and life in the country is much better than used to be．
A. that
B. it
C. what
D. one
网友回答
A. that
(答案→)B. it
C. what
D. one
解析：考查代词辨析。That指代可数名词单数或者不可数名词，后面必须有短语修饰；it指代上文出现的同一事物；one表示泛指，指代可数名词单数形式。 本题中的It指代life。句意：在过去的十年里情况变化很快，乡村的生活比过去已经好多了。It指代the life,故B正确。