◎ 题干
—There is a lot of wind in North China.
—Well, more trees ______ every year to stop the wind.

[     ]

A. must be planted
B. can planted
C. should planted
◎ 答案
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◎ 解析
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◎ 知识点
    根据n多题专家分析,试题“—There is a lot of wind in North China. —Well, more trees______ every year to stop the wind. [ ]A. must be planted B. can planted C. should planted …”主要考查了你对  【被动语态】  等知识点的理解和应用能力。关于这些知识点的“档案”,你可以点击相应的链接进行查看和学习。