(    ) 1. A. I don’t have a hair band.             B. I think so.            C. I have long hair.

(    ) 2. A. I think it belongs to his brother’s.      B. I think he’s Jack.       C. I think it’s his.

(    ) 3. A. Yes, they do.           B. They don’t know.          C. Yes, they can.

(    ) 4. A. I agree.               B. You don’t think so.         C. Good idea.

(    ) 5. A. He is a doctor.         B. It can’t be him.            C. He could be running for exercise.