问题
句型转换
句型转换。
1. This is my friend,Gina.（改为否定句）
____________________________________________________________
2. That is my sister.（改为一般疑问句）
____________________________________________________________
3. These are my English books.（改为单数形式）
____________________________________________________________
4. Is he your brother?（作肯定回答）
____________________________________________________________
答案
1. This is not my friend, Gina.
2. Is that your sister?
3. This is my English book.
4. Yes, he is.