Saving money is we must do.A. what that B. anything thatC. something thatD. something w

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。