A、 Because they can't afford to.
B、 Because they think small houses are more comfortable to live in.
C、 Because big houses are usually built in the countryside.
D、 Because they prefer apartments.

【正确答案】 A

【答案解析】解析：选项均以Because开头，可知本题问原因。再结合can't afford to、small houses are more comfortable、big houses．．．usually built in…countryside等关键词，推测题目可能问某类人为何不住大房子。短文说，他们没有足够的钱去买大房子，所以A正确。

A、 Because many young people have moved into comfortable apartments.
B、 Because many old houses in the poor area of the town are not inhabited.
C、 Because many older people sell their houses after their children leave.
D、 Because many people have quit their old houses to build new ones.

【正确答案】 C

【答案解析】解析：根据选项可以预测题目大致是问为什么有很多旧房空出来。短文提到，人们不难发现有老房子可供购买。接着说明原因：很多上了年纪的人在孩子们离开后会卖掉大房子搬进公寓。C项中的关键词older people，sell，children leave都是听到的原词组合，故选C。A错在主语，录音中说搬到舒适的公寓里的也是老人，不是年轻人。

A、 They have to do their own maintenance.
B、 They have to furnish their own houses.
C、 They will find it difficult to make the rest of the payment.
D、 They will find it difficult to dispose of their old-style furniture.

【正确答案】 A

【答案解析】解析：短文说，home owners要自己来维修房子。A项是录音信息的原词复现，故为答案。