they have/were planted last year.哪个正确以及区别.

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/05 04:17:17

They were planted last year 正确,此为一般过去式的被动语态,系动词用过去式were,动词用过去分词.整句话意思是他们是去年被种植的.
再问： They have planted last year要怎样更改
再答： They have been planted last year.用现在完成时态的被动语态
再问：是否可加by sb.
再答：可以加的, 加上动作的施行者
再问： They have been planted last year by xiaoming？加在最后是吧
再答：时间状语last year 放最后

they have/were planted last year.哪个正确以及区别. These trees were planted last year.变成否定句They weren't planted they planted trees last year (改为一般疑问句） Trees were being planted here this time last year.变过去进行时主动语态问几道英语题!急!1（）these trees were planted last year? A.By Whom B ()trees were planted last year.用thousands of 还是 two thousand They were in fashion last year.为什么were不用过去式 At the end of last year ,they had planted 3,0000 trees（找错误） No trees ___ planted last year. I planted some fruit trees last year. This year they have produced ____rice ___they did last year. they were good at speaking English last year