17. 乘客於大眾運輸工具使用電玩，應關閉聲音以免影響他人。 (A) When taking public transportation, passengers who play video games should switch them off in order not to interrupt others. (B) While passengers using public transport are playing video games, they ought to lower their voices and bother anyone. (C) Passengers should turn the noise off from their video games so that they will not too bother others. (D) Passengers playing video games in mass transportation should turn off the sound so as not to disturb anyone.