Ruth is my good friend【改为一般疑问句】what's thisin English【改为复数形式】

Ruth is my good friend【改为一般疑问句】what's thisin English【改为复数形式】 1.Is that his pen?(改为复数) 2.She is my good friend.（改为一般疑问句） Gain is my good friend.改为一般疑问句 把mike is my good friend改为一般疑问句 My friend is an English boy?改为一般疑问句 Jack is my brother's good friend.(改为一般疑问句,并作肯定回答） we have small eyes、改为一般疑问句. Jim is my good friend.改为一般疑问句 This is my friend 改为复数形式 that is my friend?改为一般疑问句 My friend is Tony.改为一般疑问句 Jack is my friend 改为一般疑问句 This is my friend.(改为一般疑问句)