Explanation: When we refer to the thing we are talking about, it becomes the topic, and がchanges to は.
Example:
- メモはどこですか。
[メモは]机の上に置いてあります
- 今月の予定はカレンダーに書いてあります。
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Explanation: When we refer to the thing we are talking about, it becomes the topic, and がchanges to は.
Example:
[メモは]机の上に置いてあります