The phrase “did you know” is used when you are asking someone if they know a fact, and you already know that fact. An appropriate answer would be “no” if the person you are asking did not already know that before you asked your question, or “yes” if they already knew that fact.
The Basilica of Sacré Coeur de Montmartre, commonly known as Sacré-Cœur Basilica and often…
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