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by    mountains    if     finally   long

     Long long ago, there was a very old man called Yu Gong. There were two 小题1:          Near his house. They were so high and big that it took a小题2:      time to walk to the other side.The old man told his family that they should help him to move the mountains.
Yu Gong and his family kept on digging day after day and year after year. 小题3:      ,a god was so moved 小题4:     Yu Gong that he sent two gods to take the mountains away.
This story reminds us that you can never know what will happen 小题5:      you don't try to do it．