(    )6. A. That’s right.                         B. It’s a pleasure.               C. It doesn’t matter.

(    )7. A. Next year.                  B. At six o’clock.              C. This morning.

(    )8. A. I’d call the police.         B. I’d visit Xi’an.                 C. I’d wear a shirt.

(    )9. A. It must be six.                   B. It can be red.                  C. It could be Tom’s.

(    )10. A. No, never.                       B. Yes, I was.              C. No, I didn’t.