1 . We set up an independent child helpline that provides support and information to hundreds of thousands of children ____________ (每年). （根据汉语提示单词拼写）

2 . The industry has grown by 30% ________ (annual) over the past 10 years.(所给词的适当形式填空)

3 . 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)