one and a half years (have/has) passed since we last meet.应该添哪个,为什么?

half的用法是 one and a half years 还是one and a half year?half具体的用法? one year and a half 和 one and a half years thanks! one () and a half one and a half () years or year? one and a half 后加year 还是years one and a half 一年半用英语怎么说?是one and a half years还是one and a half year? 英语问题one and a half year’s time和one and a half years' time哪个正确 —It’s said that a new factory is being built now.—Yeah.It will take _____.A.one and half years B.a half and a year C.a year and half D.one and a half years one year and a half 后应该是接单数形式吧?比如one year and a half has passed.不是one and a half years 是one year and a half half a year 和a half years.和half year哪个正确..为什么还有1.one and a years 2.one and half year.3.one and half years.4one half and one year哪个对的．．也说明一下．好乱哦～.还有英语分数表达中间加不加连字符有 one and a half years 谓语动词用单数还是复数?one year and aone and a half years 谓语动词用单数还是复数?one year and a half 谓语动词用单数还是复数? one + 名词 + and a half one kilo and a half one and a half ticket one and half还是one and a half 两道初中英语题~~~求速答~~~①I began to dance( ).A:for one and a half years B:since one and a half years C:one and a half years ago D:one years and a half ago②This pair of shoes ( ) nice.A:look B:looks C:looking It will take____ time to finish the course.A one and a half years' B.a year and a halfC.one and a half year's D.a year and a half's选哪个?要表示……的时间,就可以排除B,但是one and a half years=a year and a half,我怎么觉得A和D It will take____ time to finish the course.A one and a half years' B.a year and a halfC.one and a half year's D.a year and a half's选哪个?要表示……的时间,就可以排除B,但是one and a half years=a year and a half,我怎么觉得A和D