On a very cold winter day,there was a drunken guy(41) decided that he would go fishing on the ice in the lake.He packed up all his fishing tools and set out in search of a (42) (suit) s pot.Eventually he came across a huge area of ice and decided that since he(43) (come) to the lake,he would stop there and gave it (44) go.He took out a saw(锯) from his tool box,and started to saw a hole in the ice.(45) (sudden),a loud voice beside him,"There is no fish here."came.The drunken man looked (46) but he couldn't find anyone.So he decided to ignore the voice and carried on (47) (saw).Again,the voice sounded,"I've told you once,there is no fish here!"He looked at the surroundings again,but there were still no people there.So he returned to his task."Stop it!"shouted the very sounding voice,"You'd better get out of here quickly (48) you will get into trouble.""Who are you?"The drunken guy shouted."You don't scare me!""Watch out and listen to me,"(49) (reply) the voice,"I'm the(50) (manage) of this Skating Rink!(溜冰场)"