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Dreams _____ when you are asleep.
The fence was put up to prevent accidents _________.
A scene in a story that ________ before the present time in the story.
Did you see a kangaroo during your _____ to Australia?
Be alert for pickpockets when ________ busy streets.
The company was _______ by an auditor.
In maths infinity refers to something without a _____.
His understanding of geography was _______.