a year and a half后接谓语动词用单数还是复数

three years and half a year one year and a half和a year and a half哪个正确 是one year and a half还是a year and a half?为什么? A.one and a half year`sB.a year and a half`sC.one and a half yearD.a year and a half的区别和用法A.one and a half year`sB.a year and a half`sC.one and a half yearD.a year and a half half a year ago. 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? My mother has been working in that clothing factory for___.A.one and a half year B.one year and half C.one and a half yearsD.a year and a half year one and a half 后加year 还是years They lived here about one year and a half改错 the baby is one and a half _____ (year)old It will take them___to finish the course.A.one and a half year's timeB.a year and a halfC.a year and a half of timeD.a year and a half time原因. one year and half 有这个词组吗?看清楚是one year and half而不是one year and a half half a year .a half year可以么? 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 once half year,twice a year She has been skating for _____.A.three and a half years B.three and half a year为什么选A?是因为第二个后面没加s吗。a half year=half a year