用括号内所给单词的适当形式填空。
1. It’s very important to teach the children about road __________(safe).
2. It was __________( pain) to admit that I was wrong.
3. Children should be taught how to spend their pocket money __________( wise).
4. This book is really worth __________( read ).
5. The __________( four ) month of a year is April.
1. safety 2. painful 3. wisely 4. reading 5. fourth