21.—How about           Christmas evening party?

—I should say it was           success.

A. a; a               B. the; a              C. a ; ²»Ìî                  D. the; ²»Ìî

22.Only in this way _______to make improvement in the operating system.ª¤

A. you can hope¡¡¡¡¡¡    B. you did hope¡¡¡¡   C. can you hope¡¡      D. did you hope