- 问题详情: HelenandBettyareverygoodfriends.Theyareinthesame(相同的)classatschool.Nowtheyareeightyearsold.Helen’smotherhasanewbaby.Helenisveryhappytohavealittlesister,soshealwaystalksabouthertoBetty.AtfirstBettyisveryinterestedinthenewbaby.Butaftersom...
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