God save the Queen!

Or at least give her a tissue...

Ready for today's Brain Bender??

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What four words, formed from different arrangements of the same seven letters, can be used to complete the sentence below?

When the Queen's ________ caused her to sneeze as she walked through the ________, she acted so ________ that it went ________ unnoticed.

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I blame feathers. But that's just me.

Anyhoo, you know what to do. The answers will be found later in the comments.