--- Are these pens your sister’s? --- No, _______ aren’t. They are _______ sister’s. A. they, Lily’s B. they, Lily C. these, Lily
—HowmuchdidthisCD_______you,Sally? —Igotitfor5dollars.
— Why do you like Sandy? — Because he is honest boy.
- Who’s the handsome boy talking with our English teacher over there? - A boy _____ Justin. He is our monitor.
_____ a dairy every day and you’ll improve your writing.
- What’s the low-carbon (低碳) style life like? - Save _____ energy, produce _____ carbon.