Dell has a ____1____ with its customers. They don’t use ____2____ to sell their goods. They offer ____3____ to customers to help customers make a ____4____ . Customers can buy a system ____5____.
【简答题】A.The tour guide will be late B.The appointment for the tour will be changed C.The tour will begin before she and the man arrive D.The museum will open earlier than usual