将She is reading book in the classroom改成一般疑问句what,when,who,where,why,这个句子为什么用这个be动词?

she is reading a book对reading a book提问 she is reading a book now.对reading a book 提问 she is reading a very interesting book.改为感叹句 把She is reading a book.改为否定句 she is reading the book now?是一般疑问句吗? Look!She is reading a book( ) hobbies（填介词） She is reading the book（ ） her motherbought yesterday she is reading a book.a book is about animals.哪里错了 将She is reading book in the classroom改成一般疑问句what,when,who,where,why,这个句子为什么用这个be动词? that book is worth reading He is reading a book. is jenny reading _____interesting book? She is reading a book. 改为一般疑问句及否定句） She is going to (reads/reading/read) a comic book tonight She is reading a book,isn't her?这句话哪里错了? she (finish)reading that story -book yesterday ----your sister?Is she reading a book?Yes,she is.A.Where doesB.What'sC.What aboutD.How does.为什么? I don't like reading book ,so she is.还是so is she.这些怎么分呢?