英语翻译please [ ] [ ] the door before you come in.

英语翻译please [ ] [ ] the door before you come in. Please_____on the door before you come in. Please ____(knock)at the door when you come in. We make it a rule to knock at the door before you come in.I Tom,____(knock)on the door before you come in next time 几道简单的英语改句子please knock at the door before you come into the Don't come in before knocking at the door. ______ at the door before you enter my room,please. A:____the door,please.B:Come in,piease.The door______. Next time__you come in,please close the door ____ at the door before entering,please 翻译：进来前请敲门.Please______ _____the door before you come in.