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.无

A、 became the children
B、 become the children
C、 had the children become
D、 do the children become

【正确答案】 D

【答案解析】句意：由于孩子们是如此的迷恋他们的电脑，夏日电脑营的营长们不得不经常强制他们停下来做运动或玩会儿游戏。 so + adj + that从句， “so + 形容词”置于句首时，句子要部分倒装，即助动词、情态动词等放在主语之前。根据that后接的从句中的谓语动词现在时“have to”可知，主句谓语动词应当使用一般现在时。因此，正确答案为D选项。