题目内容：

i am one of the boys ____never late for school
who is
who are

优质解答

who are,这是主谓一致问题,
主谓一致分为两大类：就近一致原则和意义一致原则.
就近一致原则指的是,以靠近谓语动词的,作主语的名词作为人称和数的参考标准.
意义一致原则指的是,必须分析主语属于单数或是复数,可数或是不可数,然后才能决定谓语动词的人称和数的形式.
就近一致原则（1）
连词not only...but also/ neither...nor/ or/ either...or/ not...but
Not only the students but also the teacher is enjoying the film.
不仅学生而且老师都在津津乐道地看着电影.
Neither the students nor the teacher knows anything about it.
同学们和老师对此都一无所知.
Neither he nor they are wholly right.
他和他们,谁都不是完全对的.
Either he or I am right.
或者他对,或者我对.
就近一致原则（2）
副词here/ there
Here comes the bus.
瞧,公共汽车来了.
Here is a pencil-box for you.
这儿有一个铅笔盒要给你.
Here are my replies to your questions.
这些是我针对你的问题的回答.
There is an apple,two bananas and some oranges on the plates.
盘子里有一个苹果,两条香蕉和一些桔子.
主谓一致：and
and的两边分别是不同的可数名词.
John and Mary are my friends.
约翰和玛丽都是我的朋友.
and的两边分别是不同的不可数名词.
Both rice and wheat are grown in China.
中国有种水稻也有种小麦.
and的两边的单词构成一个统一的概念.
Fish and chips is a popular supper here.
炸鱼土豆片在这里是一种很受欢迎的晚餐.（鱼和土豆片作为整体）
The poet and writer has come.
那位诗人兼作家来了.（同一个人既是诗人又是作家）