The bird doesn't fly in the sky.的改肯定句是什么?
问题描述：
The bird doesn't fly in the sky.的改肯定句是什么?
The bird doesn't fly in the sky.的改肯定句是不是这样：
The bird flies in the sky.
还是这样：
The bird flys in the sky.
还是：
The bird fly in the sky.
是哪一种?
答
The bird flies in the sky.
fly第三人称单数是把y改为i+es