There is a lot of wind in North China.Well,more trees ________every year to stop the wind.
问题描述：
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 D may be planted
答
选择A因为中国的北方多风,所以,必须要中很多树来抵御大风!
其实要是C改成should be planted其实也是可以的,表示应该的
希望我的回答能够帮到你,