Information technology is taught in most schools we have entered the information society.A

问题补充：

Information technology is taught in most schools，we have entered the information society.

A. so

B. while

C. still

D. for

答案：

A. so

B. while

C. still

(答案→)D. for

解析：for用作并列连词，连接两个并列分句，后一分句起对前一分句进行进一步解释或推断的作用。