A．She forgot about the seminar. B．She has been ill for several weeks. C．She wasn't able to attend the seminar. D．She hadn't planned to attend the seminar.
A.She B. B．She C. C．She D. D．She E.
【参考答案】
C 解析：M:IkeptlookingforMaryattheseminarbutIneversawher.Ic......