如one or two students 做主语,谓语动词是用单数还复数?

there is one or two students?还是there are one or two students?为什么 如one or two students 做主语,谓语动词是用单数还复数? in one or two 如题 one or two in one or two one or two one or two 加时间,谓语用单数还是复数?如：one or two hours （ ）enough. one year or two one or two year 的意思 是one or two year还是one or two years in one or two words 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 a year or two 还是one year or two Some students do not do the eye exercises c____ at school.And some students often dotheir homework for one or two hours without a r_____. some students prefer to do several short assignments for a class.other students prefer to do one or two long assignments for a class. Will you return to one or two of them?Which?And when?如标题所说, 英语翻译one of two or three dozen in one or two words的中文 in one or two words 的中文