Mr. Smith suggested the problem worth paying attention at the meeting.A. to be discussedB

问题补充：

Mr. Smith suggested the problem worth paying attention at the meeting.

A. to be discussed

B. to being discussed

C. being discussed

D. be discussed

答案：

(答案→)A. to be discussed

B. to being discussed

C. being discussed

D. be discussed

解析：考查句子结构和语态。形容词短语：worth paying attention to修饰名词the problem.suggest（建议）后面的宾语从句使用虚拟语气should+动词原形，should可以省略本题的be discussed前面就省略了should。根据句意说明应该使用被动语态。句意：斯密斯先生建议值得注意的那个问题应该在会议上被讨论。故A正确。