Now many people are in playing games on the Internet.Ainterested; interestingB. interes

问题补充：

Now many people are in playing games on the Internet.

Ainterested; interesting

B. interesting; interested;

C. interested; interested;

D. interesting; interesting;

答案：

(答案→)A. interested; interesting

B. interesting; interested;

C. interested; interested;

D. interesting; interesting;

解析：interested和interesting都是形容词有趣的意思，和人搭配的用interested较多，和物搭配的用interesting较多，故选A。