【答案】—It is really a waste of time to play phone games.

—It is really a waste of time to play phone games.

—Exactly! As a teenager, we have more _____ things to do .

A. careful B. successful C. meaningful D. peaceful

【答案】

C

【解析】

句意：——玩手机游戏真是浪费时间。——说的对！作为一名青少年，我们有更有意义的事要做。careful认真的；successful成功的；meaningful有意义的；peaceful和平的。根据It is really a waste of time to play phone games.可知玩手机游戏是浪费时间，因此我们要做有意义的事，故选C。