2 years has passed还是have passed

2 years has passed还是have passed ten years have passed还是has passed two years have passed 还是two years has passed还是两个都可以? Twenty years ______ passed since I came here.填的是 have 还是 has.为什么? nearly three years ( )has passed 还是 have past since i studied at this middle school Three years have/has passed.有谁给个明确的答案,到底是have 还是has 一定要说明理由 Five years _____since he died.A.have passed B.has passed C.is passed D.are passed It has passed 10 years since we met last time. eight years has passed since mr.wang _______ 结婚 Five years has passed since we met last .为什么不用have passed? Several years has passed since we started our middle school life.这里为什么是has passed?several years不是复数形式吗,为什么不是用have passed Three years -- since they came to this schoolA .have past B.has passed C .has past D .have passed 英语 句型转换 Ten years has passed since he left here.---- ---- ten years ---- he left here How time flies!Ten years has passed.为什么这里的Ten years是看作单数? Six years has passed since he began to learn English.为什么Six years用has而不用have呢? Three years has passed since he came to China.中为什么用has不是说three years吗 three years have passed since they met last time.为什么不是has passed ?表示时间的不是用单数吗? Five years _____ since we came here.A.have passed B.has passed请问为什么不是A?