问题
选择题
I just don’t understand ____that leads to so many teenagers becoming addicted to playing computer games.
A．why it does
B．what it does
C．what it is
D．why it is
答案
答案：C
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I just don’t understand ____that leads to so many teenagers becoming addicted to playing computer games.
A．why it does
B．what it does
C．what it is
D．why it is
答案：C