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写出英语单词的复数形式,II.写出下列名词的复数形式:childfoxradiofishwomanpolicemansheepboxwolffootstorybrushwifeknifetomatotoothwatchbusmyselfstudypotatophoto

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写出英语单词的复数形式,
II. 写出下列名词的复数形式:child fox radio fish woman policeman sheep box wolf foot storybrush wife knife tomato tooth watch bus myself study potato photo
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children foxs radios fishes women policemen sheep boxes wolves feet stories brushes wives knives tomatoes teeth watches buses ourselves studies potatoes photos\辅音+y去y变成i再加es,如:family,复数为families;而day是元音+y,这样是直接加s,是days,如:birthday,复数是birthdays;以o结尾的有生命的+es,如:tomato,复数是tomatoes;无生命的+s,如:piano,复数是pianos;以sh,ch,s,ss结尾的+es,如:dress,复数是dresse等;以fe,f结尾的要把f,fe变成v+es,如:knife,复数是knives;其余的加s.