Being a _________ person, Mrs Li wouldn’t let anyone or any difficulty stop her.

These natural parks are very important for preserving many animals, which would _______ run the risk of becoming extinct.

— Jack has spent an hour in the shoe shop．Hasn't he decided which pair of shoes to buy?— Maybe．Young as he is, he is         about his appearance．

I think whoever makes______contributions to the company than the others should get ______income.

 Learning from _______ mistakes can help us stay cautious and make wise decisions in the days to come.