1A 3U,At school,a pencil,a pencil,a book,a bag,a chair,Is it a .? Yes. (No.),Is it a .? Yes. (No.),Is it a .? Yes. (No.),Is it a .? Yes. (No.),Is it a .? Yes. (No.),Is it a .? Yes. (No.),Is it a .? Yes. (No.),Take out your book.,Open your book,Close your book.,Put it in your bag.,