With the word PM 2.5 ________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
—I am going to Spain for a holiday soon.— ______.
—Was he nervous when facing the interviewers?—He is ________, and he even made some jokes.
— What caused the party to be put off?— ________ the invitations.
Nowadays many parents are trying to either prevent their children from failure, or protect them from the knowledge ________ they have failed.
From the tears in Nedra’s eyes we can conclude that something sad _________.