__________at the door before you enter the office,or you’ll
you must ____(knock)on the door before you enter
always knock on the door before you enter
______ at the door before you enter my room,please.
Before you_____(enter)the office,you should______(knock)at t
you should knock at the door before you the room.为什么用enter而不
Before you enter the teaher's office,you should k____ on the
Before you enter the teacher"s office ,you must (k ) on the
before you enter the teacher's office,you should k____ on th
根据首字母提示写单词1、Before you enter the teacher's office ,you shoul
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 A knock B knocking Ck