First come,first served. 谁先来就先招待谁。
The concert hall is packed. 音乐厅里人挤得水泄不通 。 Are the seats assigned? 对号入座吗？
Is this seat taken? 这位子有人吗？ Do you sell season tickets? 你们卖季票吗？
What seats are left? 还剩下哪些位子？
