单项选择题
A．It can do everything that man does. B．Our lives have been changed a lot. C．More and more information can be stored in a computer. D．Everything remains the same as before. Section C
A．History book. B．Physics book. C．Chemistry book. D．English book.
A．Air hostess and passenger. B．Bank clerk and customer. C．Waiter and customer. D．Salesman and customer.