He has a nice kite. 改否定句首先明确句子时态---一般现在时然后看主语，He是第三人称单数谓语动词 has，做了三单的变化（1）在谓语动词前加doesn't（2）把谓语动词has变回原形have答案：He doesn't have a nice kite.希望能帮到你~~
he does not have a nice kite.
He doesn't have a nice kite .
