问题补充:
Saving money is we must do.
A. what that
B. anything that
C. something that
D. something which
答案:
A. what that
B. anything that
(答案→)C. something that
D. something which
解析:what和that不能连用,anything表示任何事,用于否定疑问句中,which不能修饰不可数名词,故选C,节约花钱使我们必须做的事情。