Tom is my friend.（改为一般疑问句）回答应该是 Who (is?are?)your friend?如果两个都不是,那例外,不管是不是,请解释为什么要这样做?

Tom is my friend. Tom,t____ is my friend,David tom is my friend 对tom的提问 it is my friend ,Tom .为什么不能用he is my friend ,tom? This is my friend This ( )( )my friend(改为否定句) Tom is his good friend.改为同意句Tom is ____ good friend ____ ____. Tom was my friend last year.改为一般疑问句 Tom was my friend last year.改为一般疑问句 Tom is my friend.改为一般疑问句 This a key in English.(对划线部分提问）That is my uncle.改为否定句 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 that 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