ls this a book Yes,this is.谁会修改?

ls this a book Yes,this is.谁会修改? ls this you book?yes,is isn’t.哪错了? ls he reading a book?yes,后面是什么 ls this your pen?yes,itisn't 哪里错了? ls this ( ) english book?( )中填啥? Is this a book? Yes,this is. is this your book?yes,() A.this is B.it isis this your book?yes,()A.this is B.it is C.it isn't 把下面的句子变为复数形式1.This is my sister2.That is his brother3.what is that4.Ls this your friend5.that isn't a book ()25.ls this ___________ English book?A.a B.l C.your D.you 改成复数句This is a book.That isn't an egg.Is this a book?Yes,is is.Your picture is very good. This book is yours,isn't it?A:No,it is.B:Yes,it's my friends.C:Yes,it's not mine.D:Yes,it's mine. ls this a picture是什么意思 初一英语单数句子变复数句子① IS this you aunt?—Yes,it is./NO,it isn't.This isn't my aunt.② It is a book.Is it a book?It isn't a book。③ He is my father。Is he your father?—Yes,he is./No he isn't.He isn't my father.⑤ This dic ls that a book 做肯定回答 ---ls this a little kangaroo?--No,__A:it is B:it isn' t C:this is ls this your book ?（作肯定回答） ( )7.can i help you?a.no,i don't b.i like this book.c.i like the book.d.yes ,i do( )7.can i help you?a.no,i don't b.i like this book.c.i like the book.d.yes ,i do a和an．the的区别ls this ( ）English book又用哪个介词填