从方框中选择合适的单词，用其适当形式填空。

win   care   leave    act     nature

Millie is a shy girl, she is __________ in class.
If we don’t protect the wild animals, there may be none _________.
After looking at the picture ___________, I found my father at last.
We all know that milk is a kind of _________ food.
The prizes on the desk are those ___________.Congratulations(祝贺) to them!