下列各句是什么从句?1）That is where LuXun used to live.2) He spoke as if he understood what he was talking about.3) I wonder why she refused my invitation.

下列各句是什么从句?1）That is where LuXun used to live.2) He spoke as if he understood what he was talking about.3) I wonder why she refused my invitation. 把下列简单句改成定语从句1、that is the student .the headmaster praised him at the meeting last week.that is the student （ ）（ ）（ ）（ ）the meeting last week.把下列定语从句改成简单句2、all that I need is your hel that is why是什么从句 the cat is very cute that is Mimi 这句是什么从句? （It is ）no wonder that..引导的是什么从句? That there is life on another planet is almost impossible.这句是什么从句 ,为什么用that my biggest problem is that I am too busy这句是什么从句?有什么依据? That every rich man wants to marry is a truth 是什么句?是不是同位语从句? what sunflowers do is that keep face to the sunshine 这句是什么从句 判断从句The new （that he passed the exam）is excitied.这句话是什么从句? It is sad that... that引导的是什么从句? 关于名词性从句的题目...一 下列各句哪句含有名词性从句,并指出是什么从句.1）That is where LuXun used to live.2) He spoke as if he understood what he was talking about.3) I wonder why she refused my invitation.二 用适 museum is one of the most famous museums____ open to the publicA that are B that is为什么选B,为什么是IS?还有,这句是什么从句? 下列属于哪类从句 比如 主语从句 宾语从句 时间状语 定语等 I think （that）he is fit for his office. 请问这句话是什么句型 为什么that可以省略 为什么that不能被替换成when 句中的从句有是什么从句That/It is the first time (that) I have read the book. “That is what he wants.” 是什么从句?what是什么代词? 请帮忙分析此句结构 ：It is honesty that makes her different from the other students?请问that 在此句中所引导的是什么从句 why is it that 是什么从句?到底是同位语从句还是强调句呢？似乎两者都讲得通，但是怎么区别呢？