With the ______word “ PM2.5” constantly appearing in _____media reports, people pay greater attention to it and seek health tips for smoggy days.
178. My brother has _____ the army for more than five years.
177. You should work hard. If you do so, you are expected to _______ the club.
176. I _______ to catch the early train, but I didn't get up in time. I have to stay here for another two days.
175. They instructed me in the best ways of doing the job. The underlined part means _______.
174. An American Indian was badly _______ in the road accident, and now she is still in hospital.