单项选择题
A．He will only be available in the afternoon. B．It’s not his office hour. C．He doesn’t have time. D．He is too tired after class.
A．Clean her house while she is away. B．Buy her some plants and take care of them. C．Water her plants while she is away. D．Water her plants when he is not at work.
A．The woman feels sorry for the man. B．The man is a member of the staff. C．The area is for passengers only. D．The woman is asking the man to leave.