So involved with computers ____ that the leaders at the summer computer camps often had to forc...

So involved with computers ____ that the leaders at the summer computer camps often had to forc...

B

试题分析：句意：孩子们是如此迷恋电脑，以至于夏日电脑营的营长们常常强迫他们停止电脑游戏去运动。首先是要用倒装句，so  ....that（如此……以致……）结构中so在句首，后面的句子要用部分倒装，其次是时态，根据“had to”可知用一般过去时，说话时children仍然是迷恋电脑的状态，不能用完成时。选B。