that is my friend?改为一般疑问句

that is my friend?改为一般疑问句 1.This is my sister.改为复数句2.That is my friend.改为复数句 that girl is my friend This is my friend This ( )( )my friend(改为否定句) is that girl your friend?改为复数 that is her friend.改为一般疑问句 That is his friend.改为复数句 Is that your friend (改为复数句) that is his friend.改为负数句 This is my friend 改为复数形式 Jack is my friend 改为一般疑问句 she is my friend (改为复数句) He is my friend .改为一般疑问句 this is my friend改为疑问句 this is my friend.(改为否定句) she is my friend 改为否定句 My friend is Tony.改为一般疑问句 Alice is my friend.改为一般疑问句