1 . I’m writing ________________________ as the host for the 50th anniversary of our school.
我写信申请成为我们学校50周年校庆的主持人

3 . 医生可能利用这种准确理解他人感受的能力来找出最好的帮助她的病人的方法，而骗子可能会利用它来控制潜在的受害者。
The ability to accurately understand how others are feeling may be used by a doctor to find how best to help her patients, while a cheater might use it to ________.

5 . 学生应该充分利用大学里的每一个机会，根据自己的兴趣报名参加一些有意义的课外活动。
Students should ____________________ every opportunity in the college to ____________________ extra-curricular activities ____________________.

6 . 人必须专心工作才能进步。
One must ______ on his work in order to ________ _________.

8 . 想要了解更多课程的相关信息，请拨打(920) 746­****。
________ relevant courses, please call (920) 746­****.

9 . 人们应该采取各种可能的措施来防止这条河流受到污染。（prevent）
Every possible means should be taken _________________________________________.

10 . I’m writing ________ to your letter asking about the competition.
我写信回复你咨询这次比赛的信。