Class One单数还是复数（用is 还是are)

Class One单数还是复数（用is 还是are) half a class 用单数还是复数? the boys of Class One是单数还是复数?一班的男孩们.后面是填is还是are? Look!Class One are doing eye exercises.为什么用 are doing 不用is doing?详细一点的说那么everone 用复数还是单数？ any one of us is还是are?单数还是复数? is one of 后面加复数还是单数 Class three 是单数还是复数? the class 是单数还是复数 tht whole class是单数还是复数? half zhe class是单数还是复数?half zhe class is going to...Or half zhe class are going to... one kind of后面加名词,用单数还是复数 no one 作主语,谓语动词用单数还是复数 They are not in the same class .class用单数还是复数 some one 是单数还是复数 one or two students in the class加单数还是复数One or two students in the class_____often late for school. It's better to let _____parents know.A.is his B.is their C.are his D.are their one of the boxes are/ is there.请问使用is还是are啊?到底是跟着one 用单数,还是跟着 boxes 用复数? belongings单数还是复数belongings用ARE 还是用IS one and a half hours is/are needed to finish the job.用单数还是用复数