英语翻译根据中文提示写出英文(如果能用定语从句请尽量用定语从句,1.These are the plates______

英语翻译
根据中文提示写出英文(如果能用定语从句请尽量用定语从句,
1.These are the plates___________（妈妈打破的）.
2.__________（研究地震的科学家）think that there will be another earthquake soon.
3.This is the book_________（它的封面是绿色的）
4.I will never forget_________(我入团的那一天)
5.This is__________(我两年前住过的房子)
6.Do you know____________(他迟到的理由吗)?
另外我想问一道改写题(就是用括号里的词来改写句子,但原意不能变)
The trousers are either too big or too small for him.(not fit...very well)