句型转换：1.This is my brother.(一般疑问句） 2.That's her sister.(否定句) 3.Is this his parent?(改为复数形式)
问题描述：
句型转换：1.This is my brother.(一般疑问句） 2.That's her sister.(否定句) 3.Is this his parent?(改为复数形式)
答
1,Is this your brother
2,This isn't her brother .
3,Are these their parents