单项选择题
[听力原文] W: Would you like to see a menu M: No, thanks. I already know what I want to order.
What is the most probable relationship between the two speakers（）
A．Mother-son. B．Waitress-customer. C．Servant-master. D．Driver-passenger.
单项选择题 If you show dedication in your studies, you will succeed（）
单项选择题 According to this passage, one of the reasons that films are often expensive to make is that（）
单项选择题 What does the most junior employee in a library do（）
