按要求改写句子。
1. The old man is so worried that he doesn't know what he should do next. (改为同义句)        
    The old man is so worried that he doesn't know _____ _____ _____ next.    
2. Reading the long novel in so short time is not easy. (改为同义句)        
    It's not easy _____ _____ the long novel in so short time. 
3. They had fun at Lucy's birthday party last night. (改为同义句)        
    They _____ _____ _____ _____ at Lucy's birthday party last night.
4. The story made me laugh. (改为被动语态)        
    I _____ ______ _____ _____ by the story.
5. Pollution makes me feel kind of angry. (对画线部分提问)         
    _____ ____ pollution make you feel?