-Someone’s knocking at the door. Is it your mother?-No, dad. It _____be mom. I saw mom ____in the bedroom just now.
Here ________ for you.You are too lucky.
What ________ subjects do you like?
My ________ is at 98 Zhongshan Road.
My family ________ a walk on the street now.
Although he’s now an old man,he’s ________ very lively.