Alan worked in an office in the city. He worked very hard and really wanted to take a holiday. He usually went to the seaside, but one day he saw an ad in a newspaper. "Enjoy country life. Spend a few weeks at Willow Farm. Good food, fresh air, horse riding, walking, fishing. Good prices ." "This sounds like a good idea," he thought. "I'll spend a month at Willow Farm. I'll enjoy horse riding, walking and fishing. They'll make a change from sitting by the seaside." Four days later he returned home. "What's wrong with Willow Farm?" his friend Jack asked him. "Didn't you enjoy country life?" "Country life was fine," Alan said, "but there was another problem ." "Oh, what?" "Well, the first day I was there a sheep died, and we had roast mutton   for dinner." "Fresh meat is the best." "I know, but on the second day a cow died, and we had roast beef for dinner." "Lucky you!" "You don't understand," Alan said. "On the third day a pig died and we had roast pork for dinner." ' "A different roast every day," Jack said. "Let me finish," Alan said, "on the fourth day the farmer died and I didn't dare to stay for dinner!" Where did Alan work? He worked   _  . '
on a farm at a school in a restaurant in an office in a city