第1个回答 2011-06-12
There is a book in the bag.
否定句 There is no book in the bag
一般疑问 Is there a book in the bag?
Yes, there is. 或者 No, there isn't.
第2个回答 2011-06-12
There isn't' a book in the bag.
Is there a book in the bag?
Yes, there is.
No, there isn't.本回答被提问者采纳
第3个回答 2011-06-12
There isn't' a book in the bag.
Is there a book in the bag?
Yes, there is.
No, there isn't.
第4个回答 2011-06-12
There isn't' a book in the bag.
Is there a book in the bag?
Yes, there is.
No, there isn't