apple trees为什么在tree后面加s,而apple后面不加呢?

apple trees为什么在tree后面加s,而apple后面不加呢? 名词变复数 为什么apple tree变apple trees,Chinese还是Chinese Look,there're 后为什么填apple Look,there're 后为什么填apple trees而不是apples trees或者是an apple tree 请回答时详细说下语法 还有个就是After ten yeas,all these youngsters became后有4个选择题A.growns-ups B.growns-up 为什么woman driver变复数就是 women drivers 而apple tree 变复数只有tree变复数——apple trees? Are those_______big?A:apple trees B:apples treec:apples trees d:apple tree选哪个?理由? 苹果树为什么说“apple tree” Look,there're 后为什么填apple trees而不是apples trees或者是an apple tree 请回答时详细说下语法 还有个就是After ten yeas,all these youngsters became后有4个选择题A.growns-ups B.growns-up C.grown-up D.grown-ups 我不明 These are( ) a.apples trees b.apple trees c.apples tree Are those ( A apple tree B apples tree C apples trees我认为是c 苹果树翻译起来是apple trees.为什么不是apples trees? 为什么Tree Plating tree在前,而Plating trees tree却在后面呢?是Tree Planting Day The policemen's wives sit under the apple trees 还是 The policemen's wives sit under the apple tree apple trees还是apples trees? 英语题的单项选择1.I think ( ) is a teacher.A.I B.his C.her D.she 2.There are two ( )in my yard.A.apples trees B.apples tree C.apple trees D.apple tree apple trees 还是 apples trees?为什么会有travellers cheques and bankers drafts呢? There are many (apple trees) in front of my house. 为什么apple不加“s”? apple tree 的歌词 APPLE TREE怎么样