参考答案

正确答案：D
解析：M: I kept looking for Mary at the seminar but never did see her. I can't imagine she forgot about it. She'd been talking about it for weeks.
W: Oh she didn't. It's just that she caught a really bad cold a couple of days ago.
Q: What can be inferred from the conversation?
事实状况题。解答此题的关键是从过去的动作或状态(caught already bad cold)推导出结果(wasn't able to attend the seminar)。