There is a new library in the city. It's big and modern(现代的). You have many ways to get there. You can go by bus, car, underground or bike. It has five floors, and there are lots of books on each floor.
Jim goes to the library with Charlie. He wants to borrow a book. They can't see any library assistants (图书管理员), but some robots are standing there. Jim says to a robot, "Hey, give the book to me, Mr Robot." But the robot doesn't move. "What's wrong with it?" he asks Charlie.
Charlie tells Jim, "When you want to borrow a book from it, you should say 'please' first. "So Jim says, "Please give me the book, Mr Robot. "Now the robot brings him the book. But Jim can't take the book out of the robot's hand.
This time, Jim knows the reason(原因) quickly. He says to the robot, "Thank you, Mr. Robot. "Then the robot gives the book to him and goes away.
