Much ()to help the farmer in our country in the past few years.A:has been doneB:was done 选哪个 为什么啊

问题描述:

Much ()to help the farmer in our country in the past few years.
A:has been done
B:was done 选哪个 为什么啊

A
选项A是包含被动形式的现在完成时,选项B知识被动形式。根据句子后面的 in the past few years 可知选项A是正确的。

楼上讲的很对!

A
in the past few years在最近几年,用现在完成时

A:has been done
in the past few years在过去的几年里-----这是一个现在完成时的时间状语