听力原文:M: I ran into our friend Mark yesterday on the street and he said he hadn’t heard from you for two months. W: Yes, I know. But I have been too busy to phone him. Q: What can be inferred from the conversation? (18) A.The man saw Mark on the street two month ago. B.The woman had forgotten Mark's number. C.The woman made a phone call to Mark yesterday. D.Mark and the woman had not been in touch for some time.