Please be quiet. My little child _______.
— What are you going to do this weekend?— I’m not sure ______. Maybe I am going swimming.
— Why are you so happy, Henry?— My old friend David is coming to visit me. We haven’t seen each other ______ five years.
— Can I help you, boy?— Yes. There is ______ wrong with my bike.
— Mary, is that umbrella ______?— No. It belongs to Jane.
— ______ are you going to Guangzhou?— I’m taking the plane.