To the parents’ worry, some middle school students are puter games and pletely forget their studies.
A. crazy about
B. very fond of
C. concerned for
D. serious about
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(答案→)A. crazy about
B. very fond of
C. concerned for
D. serious about
解析：考查短语辨析。句意“令父母担心的是，一些中学生痴迷电脑游戏，完全忘记学业。”A“对......痴迷”；B“喜爱......”；C“关心”；D“认真对待”。故选A。