The nembei of books on the desk are ten .有一处错误,请指出并改正

问题描述:

The nembei of books on the desk are ten .有一处错误,请指出并改正

are 改为 is the number of.的谓语动词用单数,表示.的数量的意思
a number of.的谓语动词用复数,表示大量的.的意思