Is that book his or hers?为什么不用her要用hers?

Is that book his or hers?为什么不用her要用hers? That book is his?改为复数形式 Is that his book?中文是什么 This book is his,that book is____(I) Which is ______(boring),this book or that one? That is his book.怎么改为复数句 That book is his的同义句是什么 1.Is that his book? （肯定回答怎么说?） This is my book,and that is his book(改为复数句） is my ruler and that his book is (.)that 是 this Is that book dirty or clean 在选择疑问句中,that可以这样用吗? She asked,Is this book yours or his?直接宾语变间接宾语 She asked,“Is this book yours or his?”将直接引语变为间接引语 用a/an填空 1 Is it( )Chinese book or ( )English book?2 This is ( )ring,and it is ( )orange ring.3 Mary is ( )English teacher.Tom is ( )Chinese teacher4 This is( )bike,It's( )old bike.5 T his is ( )telephone number6 That is ( )ID card7 I lost my ke is this （ ）book?no,that is （ ）book A,you,i B,my,you C,his,my Is that a book on farming?If so,I want to buy ______. (one OR it?) Using a book that’s three or four years old is impossible.hi tech student 选词填空 This isn' my book.That is ____ book.（my,your,his,her,its,their）