1．You know perfectly well I can't be blamed for the failure of that mission (重要任务)．
2．A large sum of money has been raised for the benefit of the poorlyeducated children in the mountainous districts (地区)．
3．As a teacher, she had earned (赢得) the respect of her students.
4．About thirty volunteers to the Mars will have been selected (选拔) throughout the world by 2020.
5．Jazz (爵士乐) is a combination of the music of Africa, the work songs the slaves sang, and religious music.
