His room number is 305.

他的房间号是305。

I forgot my room number.

我忘记了我的房间号。

What is the room number?

这个房间的号数是多少？

Please tell me your room number.

请告诉我你的房间号。

The room number is on the key card.

房间号在钥匙卡上。

Can you help me find my room number?

你能帮我找到我的房间号吗？

My room number is 309.

我的房间号码是309。

My room number is 1101.

您是几号房的?。

Your room number is 708.

您房间的号码是708。

What is your room number?

请问您的房间号?