31.“a+单数名词+or two”作主语时的主谓一致

“a+单数名词+or two”作主语时谓语动词用单数;但“one or two+复数”作主语时，谓语动词用复数。

A boy or two has come.=One or two boys have come．

来了一两个男生。

We have also had a lot of games and one or two have played in every game．

我们也参与了很多游戏，有那么一两个人所有的游戏都参加了。

The book is opened at random．A picture or two is looked at．

人们只是不经意地翻一翻某一本书。(有时)只是看看里面的图片而已。

A goal or two is what everyone needs．

每个人都需要一两个目标。