题目内容：

阅读下列短文，根据短文内容填空。在未给提示词的空白处仅填写1个适当的单词，在给出提示词的空白处用括号内所给词的正确形式填空。

Dr. William retired from business1.an early age; and an important reason for his doing so was that he might devote himself more fully to the education of his daughters, which2. (conduct ) almost entirely at home. Having a decided taste for the ancient classics, he considered that so good a foundation of a sound education ought not to be ignored. Just like other parents, he thought3.came first was the education of their children.