This is a book (对a 问题也是英文

This is a book.对a book进行提问 This is a book This is a book.对book 提问时what is it 对,还是what is this? 对划线部分提问This is a book（a book）.That is a red book（a red book）. This is a book (对a 问题也是英文 Is this a book? Yes,this is. This is s book.(a book提问) This is a book答语 This is a red book.对red提问怎么答? This is a book of mine.和This is a book of me.哪句话对?为什么? This is a book 对划线部分提问 （划线部分 BOOK）大神们帮帮忙 This is a book 改为复数句 This is a interesting book.找错误! this is a book改为复数形式 This a book is good 怎么改错 Is this a book?的复数句 改错题：This is a my book. This is a book变成一般疑问句