You should knock at the door before you you _____ the room.【
You should knock at the door before you you _____ the room.【
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)
Please knock at the door before you enter the room .(同义句转化))
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
______ at the door before you enter my room, please. A.Knock
you must ____(knock)on the door before you enter
______ at the door before you enter my room,please.
You must knock at the door before you e_____the teachers’off
you should always remember to knock the door when _____ the
always knock on the door before you enter