"that" 可以引导多种类型的句子，主要包括以下几种：
名词性从句
主语从句：例如：That you will win the medal seems unlikely.
宾语从句：例如：I know that you are coming to the party.
表语从句：例如：The fact is that he didn't do it.
同位语从句：例如：The idea that we should protect the environment is widely accepted.
定语从句
that 作为关系代词，修饰前面的名词，例如：The book that you gave me is very interesting.
状语从句
that 与某些副词（如 so）搭配，引导结果状语从句，例如：She was so tired that she couldn't sleep.
强调句
that 可以用于强调句的结构中，例如：It was on a cold winter day that he was born.
在使用 "that" 引导从句时，需要注意以下几点：
省略：在宾语从句中，that 通常可以省略，但在某些情况下（如表示命令、请求、建议的动词后）不能省略。例如：I suggest that you study harder.
不充当成分：在名词性从句中，that 不充当任何句子成分，只起连接作用。例如：That he is late is obvious.
特定情况下的不可省略：在某些情况下，如主语从句、表语从句和同位语从句中，that 不能省略。例如：That he is a good boy is known to all.
希望这些信息对你有所帮助。