问题补充:
It is he is always addicted to video games makes his parents worried about him.
A. /; that
B. what; that
C. that; that
D. because; that
答案:
A. /; that
B. what; that
(答案→)C. that; that
D. because; that
解析:考查主语从句和强调句:这句话可以改成:That he is always addicted to video games makes his parents worried about him.所以判断是强调句,强调结构是:It is/was+强调部分+that+其余部分. 这里强调的是主语从句,he is always addicted to video games是完整的句子,用that引导主语从句,不做成分,that不能省略,句意:是他对录像上瘾使他父母对他很担心。选C。