1. —Hello. May I speak to Tom?

—I’m sorry. You________ have the wrong number. There’s no one here by that name.

2. I don’t know. It ________ be a stick.

3. The phone is ringing, but there is no answer. She _________ be at home.

4. He _____________ be Japanese—he speaks Japanese so much.

5. Listen to the laughter（笑声）. They _______ be enjoying themselves.

6. You’d better take an umbrella. It ________ rain before evening.