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$15 $10 cheap cheaper cheapest The yellow book is the cheapest. $ 100 $ 200 $ 300 expensive more expensive most expensive The red bike is the most expensive. test 測驗(yàn) test 測驗(yàn) test 測驗(yàn) Tony Apple July good better best Tony is the best. test 測驗(yàn) test 測驗(yàn) test 測驗(yàn) Tony Apple Jenny bad worse worst Jenny is the worst. coldest longest cheapest hottest shortest best l t tt t P54 most expensive worst r t ¥ 9000 ¥ 10 coldest biggest best shortest most expensive worst longest cheapest hottest 最高級變化規(guī)則: ? 一般在詞尾加 est 如 : smallest ? 以 e結(jié)尾的形容詞加 st