there is a( book )on the desk 句型转化 改为否定句 一般疑问句 肯否回答 括号内提问

题目

there is a( book )on the desk 句型转化 改为否定句 一般疑问句 肯否回答 括号内提问

答案

there isn't a( book )on the desk
Is there a( book )on the desk
Yes ,there is.
No,there isn't
What is there on the desk?