Does Lily Complete Her Homework?

Lily does her homework.

这是一个一般现在时的单数第三人称的句子。 要改成一般疑问句首先我们要把助动词does提前，开头字母D要大写，后面实义动词“做”does动词改成原型do，最后末尾再加上问号，就如下面的样子:

Does Lily do her homework?