句型转换。 1. Both Lucy and Lily have been to
题型：句型转换
问题：
句型转换。
1. Both Lucy and Lily have been to the Great Wall. (改为否定句)
_____ Lucy _____ Lily has been to the Great Wall.
2. The book cost ten yuan. (对画线部分提问)
_____ _____ _____ the book cost?
3. He was reading a novel when the teacher came in. (改为一般疑问句)
_____ _____ reading a novel when the teacher came in?
4. Where does he live? I don't know. (改为含有宾语从句的句子)
I don't know______ _____ _____.
