How is he?改为复数句无

How is he?改为复数句无 He is my brother.改为复数句 he is my teacher 改为复数句 He is my friend.改为复数句 He is a worker改为复数句 who is he he is my grandparents改为复数句 How old is he?改为同义句 How old is he 改为同义句 How is he?He is fine.改成复数能否改为How are they?They are fine. How much is this dress?(改为复数句） He is a good child.改为复数句 把He is Mrs.smith's son改为复数句, He is a man doctor.(改为复数句） He is an English teacher.改为复数句 He is a man doctor.(改为复数句) He is an American schoolboy.改为复数句是什么?kkkkkkkkkkkkkkkkkkk, he is a new teacher.(改为复数句） Is he in the study?怎样改为复数句?