To protect the environment,more trees _____ in our country every yearA plant B were planted C be planted D must be planted

来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/15 11:46:25
Toprotecttheenvironment,moretrees_____inourcountryeveryyearAplantBwereplantedCbeplantedDmustbeplante

To protect the environment,more trees _____ in our country every yearA plant B were planted C be planted D must be planted
To protect the environment,more trees _____ in our country every year
A plant B were planted C be planted D must be planted

To protect the environment,more trees _____ in our country every yearA plant B were planted C be planted D must be planted
D

情态动词被动语态: must be + 过去分词

从 every year 每年,一般现在时,排除B 一般过去时的被动语态


祝你学习进步,更上一层楼! (*^__^*)
不明白的再问哟,请及时采纳,多谢!

选D。首先,树是被种的,用被动,时间状语是every year,排除B。每年必须种树。

D