Are those techers very busy now?(改为肯定句）

Are those teachers very busy now?怎么改成肯定句?顺便说一下中文. Are you now very busy? Are those crayons hers?(肯定句） Do not call her. She is very busy now.（改为同义句） Those old people are very healthy(改为同义句) Are you having breakfast now?(改为肯定句) The teachers are very busy now?(划线busy） the teachers now? （对 Those are oranges（改为单数句） Those are erasers.(改为单数句） What are those?(改为单数句） Those are eggs.（改为单数句） I fell you are very busy now