根据汉语提示完成句子，每空一词。
1．这两朵花都很好看。
_____ flowers are very beautiful.
2．不论是老师还是学生都没能做出那道数学题。
_____ the teacher _____ the students can work out the maths problem.
3．他让儿子在家受教育而不是送他去学校。
He educated his son at home _____ _____ _____ him to school.
4．据估计有两千多人在玉树地震中遇难。
It _____ ______ that there are more than two thousand people died in Yushu earthquake.
5．要么我，要么玛丽每天打扫教室卫生。
_____ Mary _____ I _____ the classroom every day.
