是an apples tree 还是an apple tree 是a sport meeting还是a sports meeting 为什么

是an apples tree 还是an apple tree?是a sport meeting还是a sports meeting?为什么? 是an apples tree 还是an apple tree 是a sport meeting还是a sports meeting 为什么 是apples tree 还是apple tree 是a apple tree还是an apple tree? 是a apple tree还啊an apple tree? 有很多个人 每个人有一个苹果 是their apple还是their apples是 all of them have an apple还是 all of them have apples还是 all of them has an apple 是Apples are a kind of fruit还是Apples are a kind of fruits还是An apple is a kind of fruit还是An apple is a kind of fruits 是a还是an 是There are some apples on the tree.对还是There are some apples in the tree.是用in还是用on? there is a bird in the tree.There is an apples on the tree为什么第一句用in,第二句用on呢? Tony is reading under an apple tree.Tom is pointing ( )the tree.请问（ ）里填at 还是 to.填to 是为什么?填at 是为什么? my favourite fruit is ( ) an apple 还是apple?另外用复数 apples here （ ）three apples and an orange. Are those ( A apple tree B apples tree C apples trees我认为是c do you know和do you think的区别?how many apples are there on the tree do you know?是Do you know how many apples are there on the tree 还是Do you know how many apples there are on the tree do you think how many apples are there on the tree 这2 There is ____apple tree in our school.这apple前应该用a,an还是the? he was surprise to see an old friend of ( )in the tree用him还是his he was surprise to see an old friend of ( )in the tree用him还是his