The birds is are on the tree这一句话有错吗?我是在练习册上看到的,似乎是不对,但是又不知道错在哪里,

The sign on the birds' cage is interesting.is为什么要改成are what are the smallest birds on earth (The sun is shining,birds are singing. 连词成句：(1)is,the,there,on,a cafe,right (2).are,the,there,in,tree,birds,many? There are some birds on the tree.的否定句 There are some birds on the tree.的一般疑问句 The sign on the birds' cage is interesting.怎么改 The sign on the birds cage is intereting一般疑问句 there ___ a monkey and two birds on the tree.____里面写are 还是is 原因是什么.如题. where are the birds they are on the picture是on 还是 in , are the birds in the 请找出5处错误:Wow!How nice the farm is!The birds----------------Wow!How nice the farm is!The birds are singing in the tree.The fishh is swiming in the water.The horse are deinking water.A cow is wakling on the grass.A boy is readding a book und where are the birds?_______A On the picture B On the sky C In the picture D On the wall some birds are fiying in the sky there is a lake in the south of picture and two boats are onthe lake.a hill is in the east of picture.there are some tree on the hill The birds is are on the tree这一句话有错吗?我是在练习册上看到的,似乎是不对,但是又不知道错在哪里, Where are the birds中文 There is an apple on the tree ,in which are also two birds.句中的in which是什么成分,有具体意思吗? There is a ship on the river中的on可不可以用 in代替is 表示从外面来的比如the birds are singing in the tree的IN那这里可以用IN吗the birds are singing in the tree可以用in吧，书上都有！