Many trees ___(plant) in our school yard these years.1.have been planted 2.are planted

分类: 作业答案 • 2021-11-25 09:48:32

问题描述：

Many trees ___(plant) in our school yard these years.1.have been planted 2.are planted
选哪个?为什么?

答

1.have been planted
1）树是被种植,应该用被动
2）these years ,这些年是延续的时间,用现在完成时