Tom,____(knock)on the door before you come in next time

Tom,____(knock)on the door before you come in next time you must ____(knock)on the door before you enter Please ____(knock)at the door when you come in. We make it a rule to knock at the door before you come in.I always knock on the door before you enter Please_____on the door before you come in. Please knock on the door before you go to the office 同义句 英语翻译please [ ] [ ] the door before you come in. 几道简单的英语改句子please knock at the door before you come into the Would you please ____________(not knock)on the door? can you hear someone _____(knock) on the door now 英语翻译before I come to knock at the door of adulthood,I feel a