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?