单选题 I'm moving to the countryside because the air there is much fresher than ______ in the city.

【正确答案】 C
【答案解析】该题考查代词的用法。that代替前边出现过的词，应该有后置定语，即：比较的对象是 the air there和the air in the city。that代替前边出现过的the air。句意：我要搬到乡下去因为那里的空气比城里的新鲜得多。答案为C。