The experts suggested the problem worth paying attention at the meeting.
A. to be discussed
B. to been discussed
C. being discussed
D. should be discussed
网友回答
(答案→)A. to be discussed
B. to been discussed
C. being discussed
D. should be discussed
解析：本题考查非谓语动词。本题较为复杂。首先，这句话的主干结构为：The experts suggested the problem be discussed at the meeting. 不难看出suggest引导的宾语从句中要用“should do”，此处should省略了。其次“worth paying attention to”作定语修饰problem，因此A正确。