She didn’t mention her troubles to Mr. Li，who might have helped her ______.

Recent studies have discovered that fathers uniquely contribute to the development of their children, _____in low income families.

With the word “ PM2.5” _________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.

A volcano in Indonesia erupted on November the 16th, 2013, and _____, hundreds of people were killed. 

I’m definitely going to settle in the countryside when I retire. All the words have a similar meaning with the underlined word, Except ______.