_______?Yes,it is.A.Is that your book.B.Are these your books.C.Is there a book.（选择—）
问题描述：
_______?Yes,it is.A.Is that your book.B.Are these your books.C.Is there a book.（选择—）
答
A 从后面的is可知是AC之一,要是选C的话回答用there is