Two years ( )a long time括号里用is还是are

（ ）He ———for two years .Two years is a long time. two years __(be)a long time Two years___a long time A.is B.are Two years are not a long time A.two B.are C.not D.time 改错 如何 Two months is quite a long time. A hundred years ＿quite a long time.A.are B.is C.were Weekends ( ) a time to relax.括号里填 is 还是 are two years ___(be) quite a long time.答案上是IS,为什么 啊?两年不是复数嘛? He has________for two years. Two years ________a long time. 1 .He has________for two years.Two years ________a long time 1.He has________for two years.Two years ________a long time. three years is a long time 句子对吗?