如果要问某人是否经常做某事，我们要采用下列表达方式：
Does he play the piano every day？他每天都练钢琴吗？
No，he doesn't.不，他不是。
Does she go to school by bike？她骑自行车上学吗？
Yes，she does.是的，她是。
Does it eat meat？它吃肉吗？
No，it doesn't.不，它不吃。
从以上的例子可以看出，单数第三人称行为动词一般现在时的疑问形式是在句首加助动词does，后面的谓语动词用动词原形。试比较：
肯定：He gets up very early.他起床很早。
肯定 | 否定 | 疑问 | 回答 |
He speaks good English. | He doesn't speak good English. | Does he speak good English? | Yes,he does. No,he doesn't. |
She lives in the city. | She doesn't live in the city. | Does she live in the city? | Yes,she does. No,she doesn't. |
The panda comes from China. | The panda doesn't come from China. | Does the panda come from China? | Yes,it does. No,it doesn't. |