请问this is one of the problems that badly ______

题目

请问this is one of the problems that badly ______
A needs solving B need solving C needs to be solving D need to solve 为什么选择答案B啊

答案

这里that 引导的修饰语修饰的是problems,确定出 只有BD
此外,need doing = need to be done
问题应该是被解决 的,所以只能选B