years have passed since my frist tea party with my dear friend的翻译

ten years have passed还是has passed 2 years has passed还是have passed Many years have passed.什么意思? two years have passed 还是two years has passed还是两个都可以? 一定要说明理由 Five years _____since he died.A.have passed B.has passed C.is passed D.are passed 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 he joined the army 填have passed ,have不对,passed对的. Three years -- since they came to this schoolA .have past B.has passed C .has past D .have passed years passed 意思 Three years passed是什么意思 Five years ( )since China first hosted the Asian Games.填 have passed 还是 have past? 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? Four years()since I ()the army 求分析为什么是 has passed joined而不是 passed have joined Three years __________ since my brother jioned the army.A.has passed B.have passed C.passed D.passes求列出详细解析,不甚感激. only then did I realize that three years had passed我在学校学里呆了将近3年了.但是实际上还差上一个月满三年,three years had passed好呢还是three years have passed 好呢? Twenty years ______ passed since I came here.填的是 have 还是 has.为什么?