20. The child dreamed that he had once lived in a _______ house in the forest.
A. wooden pretty little B. little pretty wooden
C. pretty little wooden D. wooden little pretty
21. The doctor said that there was ______ with her, but she could not help worrying.
A. seriously wrong nothing B. nothing serious wrong
C. nothing seriously wrong D. serious nothing wrong
22. You can't imagine ______ when they received those nice presents.  　　　　
A. how they are excited 　　　　 B. how excited they were　　　　
C. how excited are they　　　　 D. they were how excited    
20. C。依据形容词排序原则，pretty little wooden属于“描绘性+大小+材料”这一顺序。
21. C。形容词修饰不定代词要后置，seriously修饰形容词wrong应位于其前面。
22. B。宾语从句本来是感叹句，又是陈述语序，表示“他们是多么激动啊”。