With the word “ PM2.5” ________ appearing in media reports, people pay greater attention to it and seek health tips for smoggy days.
_______was not ______she took off her dark glasses _______I recognized her.
The days we look forward to ____at last.
Determination is a kind of basic quality and this is ________ it takes to do jobs well.
_________ the flight to New York will be delayed is _________ I’m especially worried about.
With a label _______ to each luggage, it won’t take you long to find yours.