Nasreddin the Ferry Man: Summarizing the Story

This is a summary of the story. Complete the summary by typing the correct words into the gaps.

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Nasreddin was a man. One day, he had a professor in his boat. The professor asked him a question, but Nasreddin couldn't . Then the professor asked him a question, but again Nasreddin couldn't answer. The professor was that Nasreddin learned nothing at . He said that Nasreddin had wasted his .

Then Nasreddin asked the professor if he could . The professor said . Nasreddin said "Then you have wasted ALL your life. We are ."