The dog rushed to him .there was a card hanging on its neck这

这个应该是不能的.there was a card hanging on its neck这句是主系表的结构,hanging on its neck这个是修饰短语,用"hung"的话句子中就有系动词跟实意动词两个啦,而一般的句子都只能有一套主系表或主谓宾的结构.动词作修饰短语要变成现在分词或过去分词,当然用连词把这个句子分成两个句子的话就可以.