D Once there lived an old man．He liked gold better than anything else in the world．He often said，“If I have enough gold，I will be the happiest man in the world．” One day when he was traveling in the desert(沙漠)，the old man lost his way．He was very hungry and thirsty，but there were only rocks and sand around him．Just then，he found a bag lying on the sand．He hoped he would find water and food in it．He took up the bag and opened it．He saw that the bag was full of gold．He was so sad that he threw away the bag and began crying． Now the old man knew that there was something better than gold in the world． 53．The old man liked        best before he traveled in the desert． A．food    B．bags    C．books   D．gold 54．When he lost his way，he wanted to get     ． A．some food and water       B．some rocks and sand C．bags full of gold          D．a map 55．What did he do with the bag?         ． A．He didn't take it up          B．He brought it home C．He threw it away            D．He cried 56．The old man didn't become the happiest man when he got the bag of gold because        ． A．the bag was too small     B．the gold wasn't his C．he was very cold        D．he had nothing to eat． 57．In the end，the old man knew that gold was          in the world． A．the best thing        B．not the best thing C．the best important    D．better than anything