Is there a bird该成疑问句该什么改

Is there a bird该成疑问句该什么改 改反意疑问句there is a bird in the tree———— There is a bird in the tree的一般疑问句和否定肯定回答 如何将There is a bird in the tree.改成一般疑问句?并作出肯定和否定回答. there are flowers反义疑问句 是在后面加 are not there 还是 are not theythis is a bird反义疑问句 书上写的是 is not it 为什么不是is not this There is a bird in the tree. 对 a bird 划线提问 There is a bird（A.of B.to C.for)bird tree. 英语连词成句 tree there big is a on the bird 连词成句:is,there,bird,a,the,in,tree.不是问句! 用in,a,bird,is,tree,the,there连词成句子 There is a bird i＿＿ the cage . There is a bird in the picture.的问句是什么? There is a bird in the tree 改为一般过去式 有一只小鸟在房顶上.There is a small bird There is a bird on the tree这句话对不对 There is a bird fly in the sky改错 there is a bird in the tree变为复数形式 Is there a bird near the window是什么意思?