21. Now ______ good many old people are also fond of playing games on ______Internet.
A. the; 不填 B. a; the C. the; the D. a; 不填
22. I am ________ with Mr Wang's ___________ talking ; I can't wait any longer for its end.
A. boring ; bored B. boring ; Boring C. bored ; bored D. bored ; boring