The room next door is noisy.隔壁太吵了

今天的几个句子是有关在饭店遇到困难的：1.Could I possibly have another room key? 我能再要一把房间钥匙吗？2.I locked myself out.我把钥匙忘在房间里了。3.I'm locked out. 我被锁在外面了。4.Could you send someone up?请叫位服务员来一下。