单项选择题
Conversation 2
A．Alan. B．The man. C． The woman. D．A guest speaker.
A．The woman is waiting for a call B．The telephone line is busy now. C．Somebody is using the telephone. D．The man cannot use the telephone.
A． Training of new employees B．Development of new products. C．Investigation of new markets. D．Improvement of the company’s sales.