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6. A. Yes, it is.           B. Yes, he is.         C. No, he isn’t.

7. A. It’s a pencil case.     B. Yes, it is.         C. It’s a pencil.

8. A. Yes, it is.           B. Yes, they are.      C. No, they aren’t.

9. A. 010-22568.         B. 001-22568.        C. 010-22586.

10. A. On the table.       B. In the desk.        C. Under the table.