a unit of acount 中的account 怎么是单数

是a unit of 还是an unit of 为什么 A small acount of money was all which was taken in the robbe 英语数量词如何区分例如,a number of,the number ,acount of等诸如此类的一些词组 money as a unit of 请问a pair of在句中的谓语动词是用单数还是复数? my GRE acount进不去怎么查分 a few of是单数还是复数 A group of stuents 是单数复数? a number of factors could account for a number of是单数还是the number of是单数 david gave us a vivid account of his trip为什么不能是explanation A-LEVEL 中的contribution per unit ..