【题目】— Why not buy a second-hand car first if you don't have enough money for a new one?
— That's a good .
A.saying
B.question
C.suggestion
D.account

【答案】C
【解析】句意：——如果你没有足够的钱买一个新车，你为什么不先买一辆二手的呢？——这是一个好建议。A .saying”说法“；B. question”问题“；C .suggestion”建议“；D.account”账户，描述“。根据句意选C。