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   Mark Twain was a famous American writer.He was also a famous humorist.He travelled very much giving speeches in different places.During these speeches he always told several funny stories.He also liked to listen to funny stories.There are many humorous stories connected with his name.

      Once Mark Twain and two friends were sitting in a restaurant.One friend had just returned from a trip to Vermont.The friend said that the air in the mountains of Vermont was very clear.In many places the echo of a voice came back five times stronger than the original voice.The second

friend said that was nothing.In Colorado,where he lived,in many places the echo of a voice spoken in the morning came back in the afternoon. Mark Twain laughed.Then he said,

   “Listen!The echoes that you have told about are very unusual.But in a small church in Hannibal, Missouri,where I was born,there is an echo more unusual even than those."[3]

“What is so strange about the echo there?"asked one of the men.

    "Well,I'll tell you,”said Mark Twain."The echo in that church is so unusual that if one

asks in a loud voice, " Good morning ! How are you? 'the echo repeats after a moment very clearly,Very well,Thank you.And how are you?'”