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Help the quirky librarian enforce her strict reading rules! Select ALL the grammatically correct sentences that she could put on her warning sign.
The correct answers are Every book in this section must be returned by Friday. and All books in this section must be returned by Friday.
Every is followed by a singular countable noun (every book).
All is followed by a plural countable noun (all books) when referring to a group of things.
"Every books" and "All book" mix up these basic rules!