问题补充：
He computer games so he has fallen behind at school.
A. is satisfied with
B. is related to
C. is connected with
D. is addicted to
答案：
A. is satisfied with
B. is related to
C. is connected with
(答案→)D. is addicted to
解析：短语辨析. A．对……感到满意 B.与……相关
C .与……有联系 D. 沉迷于
句意：他沉迷于电脑游戏，因此他在学校已经落后了。选D。
