结账就是指试算平衡。 ( )
参考答案：错
---Most hotels are very full today.
--- Don't worry! I have ______ a room already in the Changjiang Hotel.
A．bought
B．booked
C．visited
D．seen
张亮晚上9时睡觉，第二天早上6时起床，他一共睡了[ ]
A．15小时
B．9小时
C．11小时
