问题详情：
用所给单词的适当形式填空
1. "I still love and miss my mother, " that girl said _______ (sad).
2. Be careful, or you'll be in_______ (dangerous).
3. This book is much_______ (thick) than that one.
4. Many people went to see him during his _______(ill)．
5. Why are you walking so_______ (slow)?
【回答】
1. sadly 2. danger 3. thicker 4. illness 5. slowly
知识点：构词法
题型：选择题
