按要求改写句子。     
1．你难道还不相信我吗？
改为陈述句：                                                                                                      
2．警卫员立刻把黄先生的话转告主席。 
改为“被”字句：                                                                                                
3．毛主席亲手把字帖包好。 
改为反问句：                                                                                                        
4．王羲之的真迹真是世间罕有呀！ 
改为双重否定句：