— are you? —I’m thirteen years old.A. who B. where C. How old
-Would you like some milk?-________.
-Have you ever been to Shanghai? -Yes. I ______ there with my father last year.
¬ ______ does your mother watch the Talk Show?- Once a week.
Smile to the world, ________ the world will smile back to you.
Becky took a photo of her friends while they _________ computer games.