she is reading a book对reading a book提问

she is reading a book对reading a book提问 she is reading a book now.对reading a book 提问 He is reading a book.(对划线部分提问）reading a book划得线. His brother is reading a story book 对reading a story book 提问 she’s reading a book.对后三个单词提问 I am reading a book .对reading提问 Mark is reading a book in his bedroom.(对划线部分提问) （reading a b l'm reading a book 对 reading a book 部分进行提问 He is reading a book. My sister is reading a book.就划线部分提问reading a book是画线部分 Tom is reading books new?对reading book提问 对reading a story book用什么提问