2.请听一段独白,完成第14至第16小题. 14.Why does the restaurant often change the menu? A.To attract more new customers. B.To keep the customers coming back. C.To make it different from other restaurant. 15.What do we know about their food? A.It's healthy and delicious but a little expensive. B.It can't be found in other restaurant. C.It can be tasted for free before ordered. 16.What is the speaker mainly talking about? A.Menu's effects on their restaurant. B.Customers'need for food. C.Their special food and service.