1) They are _______ a) a book b) book c) books d) a books 2) It is ______ a) bag b) a bag c) bags d) a bags 3) They are ______ a) a friend b) friend c) friends d) a friends 4) He is ______ a) a brother b) brother c) brothers d) a brothers 5) They are _______ a) a pencil b) pencil c) a pencils d) pencils 6) It is ______ a) an eraser b) eraser c) erasers d) an erasers

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