复数：book,bus,watch,wish,boy,play,day,family,city,baby,tomato,potato,radio,knife,leaf,desk
问题描述：
复数：book,bus,watch,wish,boy,play,day,family,city,baby,tomato,potato,radio,knife,leaf,desk
答
books buses watches wishes boys plays days families cities babies tomatoes potatoes radios knives leaves desks注意名词复数形式的变化1 在一般名词后面直接加‘s’.2 以s x sh ch 结尾的名词后加‘es’.3以o...