It is suggested that this small town’s serious problems worth paying much attention at the meeting.
A. to be solved
B. to being solved
C. to solve
D. to solving
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(答案→)A. to be solved
B. to being solved
C. to solve
D. to solving
解析：解析：it is suggested that 引导的主语从句，应用虚拟语气 (should)+动词原形，worth paying attention to 修饰 problems，should be solved 作谓语（虚拟语气省略了should）。