问题补充：
Parents and teachers should help teenagers control their use of computer games be controlled by themselves.
A. other than
B. better then
C. rather than
D. more than
答案：
A. other than
B. better then
(答案→)C. rather than
D. more than
解析： 考查短语辨析。other than除了，better then比什么好，rather than而不是，more than超过，不仅仅，句意：父母们和老师们应该帮助青少年控制玩电脑游戏，而不是由他们自己控制。故选C。
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