单选题 —What will happen at the meeting tonight?
—We are going to talk about the problem______at the last meeting.

【正确答案】 C

【答案解析】[解题指要] 本句为过去分词discussed做problem的定语。选项B语态不符，应为被动。本句的谓语为are going to talk，如果再用A或D句子结构就错了，排除。