（2015.山东滨州）——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.

题型：单选题题类：真题难易度：容易

——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.

A、must; can't B、must; mustn't C、can't; can't D、can't; mustn't

举一反三

— Well, you_______.

—It tells us that we do almost anything if we never give up.

—Well, you're probably wrong. He always wants to learn medicine, you know.

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