there is a car under the tree 改为否定句 怎么改 快

there is a car under the tree 改为否定句 怎么改 快 There is a bide under the tree改成否定句怎么改 there is a tiger under the tree.改否定句 is it vrey tall?改成复数 There is a cat under the tree.变否定句 There is a boy under the tree 否定句怎么写 There are three boys under the tree 改为否定句 under the bed there is a basketball改为否定句 there's a man under the tree,改为复数句 There is a boy under the tree,怎样改为疑问句 The car under a tree is Mr. Is there a cow under the tree?改为复数句.并翻译成中文. 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.