皆さん、こんにちは。At や IN は何が違うのがうちの生徒によく聞かれた質問です。例えば：
- Jack is in the office.
- Jack is at the office.
どっちがただしいですか？答えは、このユーチューブレッスンにあります。 どうぞ、みてください！
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