Please knock at the door before you come into the room.(保持原意

同义句转换Please knock at the door before you go into the room 几道简单的英语改句子please knock at the door before you come into the please knock at the door before you enter the room（同义句转换） Please knock at the door before you enter the room .(同义句转化)) ______ at the door before you enter my room, please. A．Knock Please ____(knock)at the door when you come in. You should knock at the door before you you _____ the room.【 Please knock on the door ( )you came into the room A after B you should knock at the door before you the room.为什么用enter而不 ______ at the door before you enter my room,please. ——at the door before you enter my room A knock B knocking Ck We make it a rule to knock at the door before you come in.I