–Look! The man at the gate ____ be our headmaster. He is always standing there every morning.-- No, it _____ be him. He is holding a meeting in the office now.
—______ is the ruler? —______ two dollars.
We have six _____ .So we can know the time.
—Is this your eraser? —______.
Ann grows______. A. taller and taller B. the tallest C. tallest
---Would you mind ______ here? ---Sorry. I’ll go somewhere else. A. my smoking B. not smoking C. not to smoke