问题补充:
Everything comes with price;there is no such thing as free lunch in the world.
A. a,a
B. the, /
C. the, /
D. a, /
答案:
A. a,a
(答案→)B. the, /
C. the, /
D. a, /
解析:这题考察冠词的用法:第一空填a, 是泛指”一个价格”,第二空不填,no such thing”没有这样的东西”,句意是:什么东西都有价格,世界上没有免费的午餐.选B.