单项选择题
A.In a hotel. B.In a department. C.On board the plane. D.In a restaurant.
A.The bus is less expensive than the train. B.The train is faster than the bus. C.The train is cheaper than the bus. D.The bus is slower than the train.
A.When they are on holidays. B.On Sunday mornings. C.On Saturday night D.As soon as they have information.