Question

【题目】Subject directories are built by humans. Someone has pages and links and selected all those that are in the directory.

Answer 1

【答案】combed through
【解析】句意：主题目录是由人建立的。有人把页面和链接整个搜索一遍,选择所有列在目录中的东西。“搜索”comb through。题干中的has 提示我们用现在完成时。因此填combed through。