If wishes were horses, _____ beggars would ride.
No one is permitted __________ the room until the chairman declares the end of the conference.
Our English teacher raised her voice to make herself __________.
Lisa was punished by her mother because she went out to play __________ her homework unfinished.
With the word “PM2. 5” constantly __________ in media reports, you might be wondering what on earth it means.
With the audience __________ at her, the little girl felt nervous on the stage.