单选题
So involved with their computers( )that leaders at summer computer camps often have to force them to break for sports and games.
【正确答案】
D
【答案解析】考查倒装句。本句包括一个so...that...结构，so用在句首时，要用倒装句。C项时态错误。故本题选D。句意：计算机夏令营的孩子们沉迷在计算机中，以至于负责人不得不经常强迫他们停下来活动活动，做做游戏。