in the past in the past few years in the last 30 years 各用什么时态?_英语解答

in the past in the past few years in the last 30 years 各用什么时态?

人气：407 ℃　时间：2019-08-21 11:55:26

解答

in the past用一般过去时
in the past few years 和 in the last 30 years 用现在完成时