7单选When Mr David retired(退休), he bought a small house in a village near the sea He liked it and hoped to live a quiet life in it But to his surprise, many visitors came to see his house in summer holidays, for it was the most interesting building in the village From morning to night, there were visitors outside the house They kept looking in to the rooms through the windows and many of them even went into the house He decided to drive the visitors away So he put a notice on the window The notice said，“If you want to satisfy your curiosity(好奇心),come in and look around Price: twenty dollars”Mr David was sure that the visitors would stop coming, but he was wrong More and more visitors came and Mr David had to spend every day showing them around his house “I came here to retire, not to work as a guide(导游)”, he said angrily In the end, he sold the house and moved away