They're classrooms
It's a classroom
It's a pencil
They're pencils
They're clocks
It's a clock
They're chairs
It's a chair
It's a lesson
They're lessons
She's a student
They're students
It's a book
They're books
They're books
It's a book
It's a classroom
They're classrooms
She's a teacher
They're teachers
They're boards
It's a board
They're rulers
It's a ruler
They're boards
It's a board
It's a pen
They're pens
They're pens
It's a pen
She's a student
They're students
It's a pencil
They're pencils
It's a desk
They're desks
They're desks
It's a desk
It's a clock
They're clocks
It's a lesson
They're lessons
It's an eraser
They're erasers
They're erasers
It's an eraser
They're teachers
She's a teacher
It's a ruler
They're rulers
They're chairs
It's a chair