补全对话
A:Can you see my math book ____the table,Ailce?
B:NO,I can't.But______isa book under it._____it your book?
A:Let me ______.Oh,no,it is not _____book .My book is new.
B:Is it your ______?
A:My backpack?
B:YES,_______benhind the chair.
A:Oh,______.it is .Thank you very______.
B:Taht's all________.
參考答案:A. on
B. there, Is
A. see, my
B. backpack
A.
B. it's
A. there, much
B. right