1 . The Nobel Prize in literature is awarded ________ (annual) to an author who has produced the most outstanding work in the field of literature. (所给词的适当形式填空)

2 . The event, watched by millions of people all over the country, takes place a______. (adv. once every year) (根据首字母单词拼写)

3 . The company’s license must be reviewed a___________.(根据首字母单词拼写)