How time flies!There years___really a short time.A.is B.are C.was_英语解答

How time flies!There years___really a short time.A.is B.are C.was D.were.这题.大虾们出手!
A,还说时间、金钱什么的是一个整体,谓语用单数.这个能懂字面意思,可咋运用呢?有没大虾们找几个具体一点的句子做一下例子讲解一下?感激不尽!注意,要有例子.

人气：155 ℃　时间：2019-08-21 15:39:53

解答

There years----Three years 为整体,这类表时间,距离,金钱的词不论多少,做主语时,要看成一个整体,谓语动词用单数.
Fifty yuan is not enough.
Thrity kilometers is a long way.