A:how many books are there in the bookcase?
B:sorry,I don't know.
A:oh,I want some storybooks.do you have some?
B:yes.when do you need them?
A:this afternoon,ok?
B:all right. I hear you have many picturebooks,can you lend me some?
A:It's ok.
B:thank you.
写的虽好,可惜楼主没有采纳。