—Will you please answer the door? It ________ be your sister.—Sorry, I ________. I’m feeding the rabbit.
We can see__ old bike __the tree.
--Is your hat on the sofa?
--Where __ my pictures?--They’re on the desk.
--you like going swimming on weekends? --No, I __
--Do you know how to __ a beef sandwich at home? --Sorry, I don’t know.