What ___ time it is to listen to a speech having nothing to do with you

问题描述:

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

c,和你在一起听演讲,却什么都没有做,是多么大的一种浪费啊、waste这里是名词——浪费