she has done her home work改为否定句（she does the homework变否定句）

She has done her homework.请注意homework的书写，不应该分开。

英语里改否定句时，当句中有be动词，助动词，情态动词时，在它们后面添加否定词not即可构成否定句。

这句话是现在完成时态，句中有助动词has，否定句只需在has后加not即可。

答案为：

She hasn't done her homework.