There is a cat under the tree.变否定句

There is a cat under the tree.变否定句 there is a tiger under the tree.改否定句 is it vrey tall?改成复数 There is a boy under the tree 否定句怎么写 There is a bide under the tree改成否定句怎么改 there is a car under the tree 改为否定句 怎么改 快 变成否定句,一般疑问句,并作肯定和否定句.（1）there is a bike under the tree. There is a sheep under the tree.(复数句） There is a cat under the tree.划线部分是a.对划线部分提问 帮下忙啦 there is a book under the desk变一般疑问句和否定句 句型转换-英语 There is a cat under the tree（对画线部分提问） 1,There is a cat /under the tree/对化线部分提问 There is （a） cat under the tree.对括号部分提问