Questions 11 to 18 are based on the conversation you have just heard.

单项选择题A．Exchange the computer for the woman.B．Refund the woman’s money.C．Give the woman anything she likes in the store.D．Give the woman a store credit with which she can buy anything in the store.

单项选择题A．He doesn’t understand his staff.B．His computer doesn’t work properly.C．He doesn’t know how to apply computer theory.D．He is trouble to add the figures.