Tom’s parents are worried that he isto the computer games which isto children.A. addicted;

问题补充：

Tom’s parents are worried that he isto the computer games which isto children.

A. addicted; addict

B. addictive; addicted

C. addicted; addictive

D. addictive; addict

答案：

A. addicted; addict

B. addictive; addicted

(答案→)C. addicted; addictive

D. addictive; addict

解析：考查固定词组。固定词组sb be addicted to sth某人沉溺于某事； addictive 容易上瘾的；句意：Tom的父母很担心他会沉溺于电脑游戏，对于孩子来说电脑游戏很容易让人上瘾。故C正确。