Who's at the door? 谁在门口?
Is the lady of the house in? 女主人在家吗? May I come in? 我可以进来吗?
Looks like I have company. 好象我来了不速之客. Well, look what the wind brought in! 你瞧, 这一阵风把谁带来了? He's not alone. He's brought company 他不是单独一个人, 还带了成群的人来. I just stopped by to say hello. 我刚好路过,进来跟你打个招呼. Just dropping in for a chat. 我只是来串门子.
