you must ask for () when you enter the office.
Before you enter the teacher"s office ,you must (k ) on the
must ask(a,an,无)permission before you enter the room选哪个
You must show your r_____ card when you enter the library
You must ask for the r____after buying something
英译汉,when i ask you "if you go to the cinema,what must you ha
When you 're late for school ,you should enter the class ___
first,ask the way,when,say,want,what,you,must,you,to连词成句
you must ____(knock)on the door before you enter
Before you_____(enter)the office,you should______(knock)at t
you must not ask someone else to do the homework for you.改ha
you must enter at least one of the followong:wmail
You must enter the room password. 中文什么意思