按要求改写句子。     

1．他用一根长头发绑住一只虱子。

改为“把”字句：                                                                           

改为“被”字句：                                                                            

2．蔡桓公派人把扁鹊请来。 

改为“被”字句：                                                                            

改为陈述句：                                                                                     

3．一只大雁被纪昌射中。 

改为“把”字句：                                                                             

改为陈述句：____