That is my an English book 错在哪里?

That is my an English book?这句话错在哪里! l_______________!That is an English book. That is an English book变成复数 Is that an English book?如何回答 this is an english book( )that is pen that is an english book划线提问,把an english book划了线,提问是? That is an English book的复数形式 That is an English book.给为复数形式 My an English book is under the bag. 改错 book,an,English,on,bed,my,is连词成句 We are reading an English book.对English book提问 My fatrher is That is my English book的问题是什么