This kind of apple trees_____ to plant in this area.A.is going B.is difficult 选B

问题描述:

This kind of apple trees_____ to plant in this area.A.is going B.is difficult 选B
那为什么A不行?be going to?望高手指教...

选A应该用被动语态
B
sth is +adj(for sb)to do省略了for sb,比较特殊,也可理解为是一种事实