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

A love marriage，however，does——result in much sharing of interests and responsibilities．

 Anyone, whether he is an official or a bus driver, should be       respected.

You needn’t have apologized for your absence—      , it’s hardly your fault.

I went the village yesterday_________ to see my uncle, who lived there for 20 years.