【正确答案】Topic: I went to high school and then to university when I was a little older, and the two schools were very different.
Reason 1: First, I went to high school in my hometown. Students did not seem too interested in studying then, and instead spent a lot of time socializing with girlfriends and boyfriends, talking about parties, and trying to make money in after-school jobs.
Reason 2: Later, when I went to university, everything changed. Young adults spent most of their time discussing their classes or upcoming exams. They also enjoyed getting involved in politics, since they were old enough to vote.

【答案解析】Alternative Wording(替换表达)
Synonyms (a)go to—attend (b)hometown—native town
(c)socialize—hang out (d)make money—earn money
(e)old enough to vote—of age to vote, at voting age
Paraphrases 1. Students were more interested in the opposite sex than academics.
2. Having attained voting age, they were also more aware of politics.