题目

完形填空A boy thought that he was the most unhappy person in the world. He thought he was  1    because almost everything bad always happened to him. So he wanted to find the key to happiness. He walked a long way and finally came to a  2   palace. There he met the king.After learning why the boy had come, the king advised that he should look around the palace and come back in two hours. “At the same time, I want you to   3  this spoon with milk,” said the king. “As you walk around my palace, carry this spoon without spilling(溢出) the milk.”The boy kept his   4  on 14、I smell something __________ in the kitchen. Can I call you back in a minute? A. burning     B. burnt        C. being burnt      D. to be burnt