“请问我现在在哪一楼”的英文这么说？

Excuse me,could you tell me which level I am in now? (较礼貌客气的说法）
Excuse me, which level is this?(较口语话）

Excuse me, which floor are we in?

Excuse me, could you please tell me which floor I am in now

口语:Excuse me ,which floor is this?

may i ask which floor i'm in

I now ask what floor ！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！！