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    Sarah is a Canadian girl.  She is staying with Ken’s family.  She has been in Osaka for half a year.     One day after dinner, Sarah and Ken were talking about computers.  “Are computers useful in our daily lives?” asked Ken.     “I think they are very useful.  We can do a lot of things with them.  But we should think of both the good points and the bad points,” said Sarah.     “Have you ever used a computer at your school in Canada?” asked Ken.     “Oh, yes.  I often sent e-mails.  When I sent an e-mail to my friend in the United States for the first time, she answered it very quickly.  I was surprised at that.

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