—Is Tony busy now?

He is busy now the call is busy now~ she is busy now和she is busying now区别 Jane is busy now.She ____pictures . He is busy right now.后面right now怎么解释? Tony is playing basketball now.用usually改写 It is no good to come now.He is busy. mun is busy now.she is---------(water watering Mr Smith is busy now.He is writing a book The teacher is busy now.The teacher is busy ____ ____.改为同义句 the teacher is busy now.（改为同义句）the teacher is busy - - - 英语语法问题he is busy now.和he is being busy.有什么区别?