1 . I submitted my ______(propose) to the committee for their consideration. （所给词的适当形式填空）

2 . The ______(extinct) of certain species is a major concern for environmentalists.（所给词的适当形式填空）

3 . He displayed great ______(智慧；才智) in solving the problem.(根据汉语提示单词拼写)

4 . A telephone _______(接线员)asked him to hold. (根据汉语提示单词拼写)

5 . The police said all the _______(目击者)were from the same school. (根据汉语提示单词拼写)

6 . I would like to express my ________ (感激) and thanks to you all. (根据汉语提示单词拼写)

7 . The fashion________ (设计师) have sharpened up their act in the last few years.(根据汉语提示单词拼写)

8 . Since its ________ (establish), the department has dealt with numerous cases related mainly to social problems. (所给词的适当形式填空)

9 . According to the inventor, the invention would have a wide range of ________ (apply) in industry. (所给词的适当形式填空)

10 . Much to my parents’ ________, I have made ________ progress in my studies (astonish). (所给词的适当形式填空)