题目内容：

What ___ time it is to listen to a speech having nothing to do with you.需详解
A waste
B wastes
C a waste of
D waste for

优质解答

C 感叹句,what后面加名词time,a waste of time 固定搭配 ,浪费时间.
这句翻译：听一个对你毫无用处的讲座是多么的浪费时间啊!