— ______people travel every year?— Perhaps when we are talking about it. More than 100 planes have taken off around the world.
— Excuse me, do you have ________ ipad 2 ? I want to e-mail my friends. — Sorry, I don’t. But my father does. You can ask him.
---If you have any trouble, please call me. ---________.
---I lost my wallet on my way to school this morning. ---_______! You should be careful next time.
---Do you know ______ after Japanese earthquake and tsunami(海啸)? --- Sure. For three weeks.
--_______ beautiful day it is! Let’s go climbing today! ---Good idea!