She suggested the problem worth paying attention at the meeting.
A. to be discussed
B. to been discussed
C. to being discussed
D. should be discussed
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(答案→)A. to be discussed
B. to been discussed
C. to being discussed
D. should be discussed
解析：考查非谓语动词。句意：她建议值得注意的问题在开会的时候讨论。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。