帮我造20句what who when where how 的从句,（完成后再加20分）

---Where I live there are plenty of trees.
我住的地方树很多.
---There is no person who doesn’t make mistakes.
没有人不犯错误.
---This is the college in which I am studying.
这就是我在读的学校.
---He couldn’t tell where his home was.
他不能说出他的家在哪.
---I have no idea when he will be back.
我不知道他什么时候回来.
---What they have done is of no avail.
他们刚刚作的都是白费力气!
---His speech,which bored us to death,was over at last.
他那让我们极其厌烦的演讲最终结束了.
---Her sister,who lived in another city,was coming to visit her.
她住在两外一个城市的姐姐来看她了.
---I’ll never forget the village where I spent my childhood.
我将永远不会忘记我度过童年的村庄!
---Can you tell me the day when(on which)the first satellite was sent into space?
你能告诉我什么时候卫星将要被发射吗?
---No matter how heavy the box is you should carry it.
不管那个箱子多重你都要扛!
---Do you know how we can overcome it?
你知道我们该怎样克服它吗?
---Who is the girl that is talking with Mr.Brown.
和布朗先生谈话的女孩是谁啊?
---The speed at which the machine operates is shown on the meter.
仪表上显示出这台机器的运转的速度.
---I have five dictionaries of which Longman Dictionary is the best.
我有五本词典,其中朗曼词典最好!
---I can't forget the days when(in which) I lived with you.
我将永远忘不了和你在一起的日子!
---It's a mystery how they did it smoothly.
他们是如何顺利地完成这件事是一个未知秘密!
---How the prisoner escaped remains a mystery.
囚犯们是如何逃脱的是一个未知之谜!
---What surprised me most was to see some villagers seated on the benches at the back of the classroom.
一些村民们也坐在教室后面的长椅上使我十分惊讶!
---I want to know what he has told you.
我想知道他告诉了你什么.
---China is no longer what she used to be.
中国再也不是他以前那样了!
---Anyone who breaks the law is to be punished.
无论是谁违反法律都要受到处罚!
累,望加分!