Intimeofseriousaccidents,____weknowsomebasicthingsaboutfirstaid,wecansavelives.
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Iwouldappreciateit____youcallbackthisafternoonforthedoctor’sappointment.
Itisknowntoallthat____youexerciseregularly,youwon’tkeepgoodhealth.
Theywillhelpyou____youmeetwithdifficulty.
Ididn'tjointhemyesterdayevening____Ihadtogotoanimportantmeeting.