听力原文:M: I ran into our friend Mark yesterday on the street and he said he hadn’t heard
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.