题目内容
A room attendant should always ()when knocking on a guest room door.
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When chambermaid enter a guest room,So it is important to be()
Room attendant should Wait 3 seconds for guest to respond and then knock a second time.
Out of Order(OOO) means a guest is currently occupied in the room.
Stayover says the guest is not expected to check out today and will remain at least one more night.
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