改错.Knock before you enter into the room.

改错.Knock before you enter into the room. 英语改错 “Please knock the door before entering.” you must ____(knock)on the door before you enter always knock on the door before you enter Remember ________ on the door before you _______other's rooms.Yes,I willA to knock ; entering B knock ; enterC to knock ; enter D knocking ; entering You must knock at the door before you e_____the teachers’office. Tom,____(knock)on the door before you come in next time Please knock on the door before you go to the office 同义句 You should knock at the door before you you _____ the room.【是go into 和 enter都行吗?还是?】 knock you down 造句 please knock at the door before you enter the room（同义句转换）please knock at the door _________ __________the rooom you should knock at the door before you the room.为什么用enter而不用enter into Before you get into the teachers' office.You must knock( )the door.A.on B.in C.to Turn the light off before you go home,please.改错 What did happen to you the day before yesterday?(改错) 改错题 you must are home before ten o'clock. Please knock on the door ( )you came into the room A after B before C until D while knock