改为一般疑问句就要将助动词提前，所以Did Ann do her homework yesterday evening改为否定句就在助动词后面加上否定词not再加动词，所以Ann didn't do her homework yesterday evening （因为助动词作谓语意义是不完整的，所以必须跟一个实意动词来构成谓语动词）
Does her sister do homework everyday?
