It is impolite if you walk into the room without knocking at the door.
If something special happened,please let us know as soon as possible.
They got very angry because you didn't keep your promise.
In this case,let's try to get there early.
It is impolite if you walk into the room without knocking at the door.
If something special happened,please let us know as soon as possible.
They got very angry because you didn't keep your promise.
In this case,let's try to get there early.