谁帮我写10个定语从句？内容是关于教室里的。。

1.The blackboard which written "hello world" was ought to be cleaned by Mark.
2.I put on my book that is sold on ¥20.
3.I appreciate the media equipment which is usually used as a methodical way to teaching and learning.
4.Today, we class cleaned the windows which were dirty in early days.
5.Job who is my best friend is absent from school today.
6.I cherish my pen a lot which was bought by my sister.
7.Out team discuss on the topic which the teacher gave in class.
8.There is a broken desk which has stood for a long time.
9.In the classroom, we held a party which celebrated Daisy's birthday.
10.The paint which is drawn by chalk on the blackboard is really amazing.

I have a pencil box which is given by my sister as a present .
the blackboard is so far from me and i can't recognize the words that writen on it.

thargy, I am afraid, characterizes the use of all