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 spe