Helen hasn't a map of China in her study.
Helen doesn't have a map of China in her study.
Has Helen a map of China in her study?No she hasn't
Does Helen have a map of China in her study?No she doesn't
what does Helen have in her study?(对a map of China提问)
Where does Helen have a map of China?(对in her study提问)
由于have(有)用法有两种,故否定句及一般问句均有两种方法.