所有（客人）离开时必须在接待处留下钥匙。

All ___guests must leave their keys at reception when departing.

作为酒店的（客人），您将获得一朵免费的花。

As a ___guest of the hotel, you will get a complimentary flower.

这位（客人）今天早上入住了酒店。

The ___guest checked into the hotel this morning.