按要求改写句子。  

(1)我们去春游。

     疑问句：                                                                                           

     感叹句：                                                                                          

(2)今天天气好。

     否定句：                                                                                           

     反问句：                                                                                           

(3)乌云遮住太阳。

   “被”字句：                                                                                       

   “把”字句：