It is Tom often surfs the Internet playing games makes his parents very angry. A. 不填; th

问题补充：

It is Tom often surfs the Internet playing games makes his parents very angry.

A. 不填; that

B. what; that

C. that; that

D. that; what

答案：

A. 不填; that

B. what; that

(答案→)C. that; that

D. that; what

解析：考查名词性从句及强调句。第一个 that引导主语从句，从句不缺少成分，第二个that引导强调句，强调主语that Tom often surfs the Internet playing games，故选C。