Life in the city is quite different from in the countyside.
A. it
B. that
C. one
D. those
网友回答
A. it
(答案→)B. that
C. one
D. those
解析：此处it 同一指代；that表特指，相当于the +名词；常用语比较句型，有后置定语； one 同类指代；those表示复数。相当于the oneself。句意：城市的生活和乡村的生活很不相同。此处that相当于the life in the countyside。