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　　Jenny likes her work with computers and can do a lot of clever things with them．

　　“Computers are really like 　　1　　 to me nowadays,” Jenny told her mother one day．“I can ask them questions, and they 　　2　　 just like people, but more politely and without arguing(爭論), and you don’t have to 　　3　　 whether you are going to hurt their feelings．And they never lie!”

　　“I should hope not!” her mother answered．“It 　　4　　 a nice thing, doesn’t it?” “But can 　　5　　 of them think for themselves?”

　　“I’m afraid 　　6　　,” Jenny said．“you can get no more out of them than what you’ve put in．It’s called programming．But it’s wonderful what you can 　　7　　 them to do．”

　　“Well,” Jenny’s mother said, “I’d like to 　　8　　 whether you can program me one of them to give me some advice．”

　　“I hope so,” answered Jenny．“I’ll try it 　　9　　, what do you want advice about?”

　　“Well,” her mother answered, “I have 　　10　　 watches：one of them gains(走快)one second every minute, and the other has stopped and 　　11　　 start again．I would feel pleased if I know which I should 　　12　　．Do you 　　13　　 to ask one of your computers?”

　　Jenny laughed and answered, “That’s 　　14　　 to ask a computer, but I’ll do so．I’ll ask Donald．He’s my best 　　15　　．

　　The next evening when Jenny got home from 　　16　　, she said to her mother, “Donald advised you to keep 　　17　　 has stopped．”

　　“Really?” Jenny’s mother said．“　　18　　 did he advise that?”

　　“Because he pointed out that watch will 　　19　　 the right time once every twelve hours, 　　20　　 the other one will be right only once every five years．”