关于imagine的用法,

题目

关于imagine的用法,
Some people imagine flying_____more dangerous than travelling by train.Which is wrong.
A.to be B. D.being
注解说AB 是复合宾语,
但我不理解D项不能看做是imagine sth /sb doing flying 就是sth ,being 就是doing

答案

主语：Some people,谓语：imagine,宾语：flying,后面being...作状语,选D...此处用到了imagine sth结构.