In an office setting, you should knock before entering someone's office if the door is shut.
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True
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False
A closed door indicates privacy and that the person may be in a meeting or focused work. Knocking is standard professional etiquette before entering any closed office space. This gives the occupant the opportunity to invite you in or ask you to return later.
Standard workplace etiquette holds that when an office door is shut, you should knock before entering, even if you have a legitimate reason to enter (a scheduled meeting, urgent matter, etc.). A closed door signals a desire for privacy or an in-progress conversation/call; knocking and waiting for acknowledgment respects that boundary and avoids interrupting confidential conversations, calls, or focused work. This is a near-universal convention taught in professional-etiquette and business-communication courses. The statement as given ('you should knock before entering... if the door is shut') is a correct description of proper etiquette, so it should be marked True, not False.