Fish,sheep,gentleman,tooth的复数形式

Fish,sheep,gentleman,tooth的复数形式 英语 写出下列单词的复数形式cap task star tree stomach house exercise bus box watch dish class shelf life knife leaf wife half man gentleman policeman woman foot tooth Sheep fish Aircraft deer Janpanese 为什么sheep,fish没有复数形式? Gentleman gentleman 为什么SHEEP FISH的复数不加S? sheep是集体名词吗 fish是集体名词吗 should sheep and fish sit on chairs怎么翻译? chinese deer fish sheep a man doctor a woman teacherchinese deer fish sheep a man doctor a woman teacher chinese deer fish sheep a man doctor a woman teacher 变复数chinese deer fish sheep a man doctor a woman teacher 变复数 man Chinese tooth child fish Woman deer sheep ox mouse 的复数形式 a black sheep ,a cold fish,a white elephant在英语中是什么意思 ship sheep fish fifty中的 i ee i i 哪个发音不同 写出单词复数形式：class box fish watch sheep boy knife woman 名词复数形式-man- tomato- knife- bus- sheep- boy- daughter-foot- story- box- fish- 写出单词复数形式:bag,hand,foot,sheep,apple,horse,eat,fish The sheep ____(be) white ,the fish (be) live in the sea .为什么? house fish fruit cherry sheep tomato cucumber potato class vegetable 的复数形式