(6) One day, Pierre,__1__worked in a government office, received an__2__(invite) to a palace ball. His wife, Mathilde, had no money__3__jewellery, so she borrowed a beautiful necklace __4__her friend, Jeanne. She looked very beautiful__5__they had a wonderful time that evening. But after the ball, she found the necklace__6__(miss). They had to borrow a lot of money to buy a new__7__for Jeanne. In order to pay back the money, they worked day and night for 10 years. Mathilde became very old, so Jeanne didn't recognize her__8__they met in a park 10 years later. From this story, we know a person shouldn't be __9__(affect) by vanity(虚荣心), __10__it will cost him a lot.