问题详情：
根据句意和首字母填单词。
1．Amy used to be quiet，but now she is very o________．
2．My biggest p_______ is that I am too shy．
3．If you want to be healthy，it's n_______ for you to eat some vegetables and fruit．
4．You must pay a_______ to your mistakes．
5．He wanted to be a doctor，but he became a teacher i_______．
【回答】
1. outgoing 2. problem 3.. Necessary
4. attention 5. instead
知识点：单词拼写
题型：完成句子
