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    Edison had quick mind about inventions, but not always about other things.

    One day he received a notice. It said he must pay some money to the government by the next day. If he was late, ____. Edison went to the city office. Many people were waiting there in line to pay. ____, his mind was busy with ideas about a new invention. ____, the man behind it said to Edison “Young man, what's your name?”

    Edison looked at the man in surprise. “ I don't know,” he said.

    “Then I can't help you,” the man said, and told him to leave.

    Other people paid the money, but Edison stood there, and tried to remember his name. The day ended, ____.

    In the street, ____. He had to ask the friend what his name was.