Sasha Yudaev "To knock on/at the door"Which one is better? In my opinion this is just a matter of personal preference. I say "knock on the door".
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Sasha Yudaev"To knock on/at the door"Which one is better?In my opinion this is just a matter of personal preference. I say "knock on the door". I assume you're talking about a situation where you're calling on someone at their residence.