After class I like playing computer games and chatting my friends the Internet.A. for;

问题补充：

After class, I like playing computer games and chatting my friends the Internet.

A. for; by

B. with; on

C. for; in

D. with; for

答案：

A. for; by

(答案→)B. with; on

C. for; in

D. with; for

解析：for为了;by通过某种方式;with和,伴随;on在某方面,通过某种媒介；in在里面。句意：课后，我喜欢玩电脑游戏还有和朋友们在网上聊天。结合语境可知选B。