23. What a pity ! I_________ late for the football match yesterday.

A. am                B. was                  C. will be              D. have been

24£®Ò»___________I come in, Mr. King?

    -Yes. of course. Please sit down at your desk.

    A. May             B. Must               C. Can                D. Should

25. -Where is Mrs. Green?

    -She __________ to her office. She will be back soon.

A. will go             B. is going              C. has gone            D. goes