to be done还是being done?

题目

to be done还是being done?
He suggested the problem worth paying attention _____at the meeting.填being discussed还是to be discussed?为什么?"worth paying attention"和"being discussed"是修饰关系还是共同修饰the problem?
很抱歉,我认为你们都错了(犯了经验主义的错误)难道我不知道有pay attention to do 这样的搭配么?可你们见过这样用的么?仔细读读这句话不是像大家想的那么简单pay attention to do sth或者pay attention to sth .我后来问了同学,这里其实应该在to 后面断句:worth paying attention to 作problem的定语,He suggested the problem (worth paying attention to)(should)be discussed at the meeting.呵呵,大家都上当了吧?很感谢大家的热心,但如果大家能在细心看一下别人问的题的话并给出负责任的回答的话就更好了,你不觉的么?

答案

to be discussed
worth 是修饰problem 的 ,而be discussed是宾语从句当中的谓语.
它是个省略should 的虚拟