根据时间改写句子
(1)TodayisMonday.(thedaybeforeyesterday)
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(2)Thereare23studentsinourclass.(22,yesterday)
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(3)IaminGradeTwothisyear.(lastyear)
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(4)Myfatheris44.(tenyearsago)
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(5)Myparentsareathometoday.(yesterday,atwork)
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