—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.
【福建省漳州市2015年中考英语试题】----Sorry, sir. I made a mistake again.
-- -________Practice more and you will do better.
A. Al1 right. B. Never mind C. Don't mention it.