问题详情：
完成改写后的句子
1. Those are her friends.（改为一般疑问句）
her friends ?
2. Is that your backpack?(作否定回答)
No, .
3 This is his sister.（改为复数形式）
his .
4 He is my father and she is my mother.（改为同义句）
They are my .
【回答】
,those ,isn’t 3 Those are sisters nts
知识点：句型转换
题型：未分类
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