第1个回答 2015-03-29
前面的答案都不完整的
否定句:There isn't a book on the desk.
一般疑问句:Is there a book on the desk?
肯定回答:Yes, there is.
否定回答:No, there isn't.本回答被网友采纳
第2个回答 2015-03-29
否定句:There is no book on the desk.
疑问句:Is there a book on the desk?
第3个回答 2015-03-29
there is not a book on the desk.is there a book on the desk?
第4个回答 2015-03-29
Is there a book on the desk?