in ten years 出现句子用什么时态?

in the last ten years应该用什么时态? in last ten years 和in the past ten years有什么区别 分别用什么时态? in the last ten years后接什么时态 for more than ten years用什么时态 这个短语到底用什么时态呀,in the last ten years in China,150million peopl in the past years用什么时态 in the last years用什么时态? in several years用什么时态 in recent years 前面用什么时态 in ten years和after ten years 有什么区别, 遇到句子中有in the past few years,前面应该用什么时态 用一般过去时态改写句子：They are bank clerks.(were;students;ten years ag