Why can’’t Professor Hill answer her questions now ？（）

单项选择题What will the man do for the woman ？（）

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.

单项选择题What do we learn from the conversation ？（）

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.