英语补充对话
问题描述：
英语补充对话
A:（）,sir?
B:I want to borrow a book.
A:()?
B:I want to borrow a story book.
A:OK,here you are.()library?
B:Here you are.()?
A:You can keep the book for 2 weeks.
B:Thank you.
答
Can I help you ,sir
What kind of the book do you want to borrow
Your library
How long can I keep this book