He __________ be at home now because I saw him in the office just now.
—What’s on the floor?— A. That’s my key. B. There’s a book. C. It’s red. D Yes , it is .
---Tomorrow we’ll go to the zoo for our class trip. How will we get there?--- You can get there , but I’ll walk there.
---_____ does she chat with friends on the Internet?--- Once a week.
In my pencil-box, _______ a pen, two pencils and three rulers.
Our school is the zoo.