_____ at the door before you come into the room. A．Hit B．Kno

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