【正确答案】 D

【答案解析】解析：alert(to)vt．警告，使警惕(如：This alerted us to a new danger of aggression．We must alert the nation to the need to solve these problems．)。warn(of／against)vt．警告，告诫(句型：warn sb．of／against danger／that there is danger；warm sb．not to+动词原形)。advise vt．劝告，建议(句型；advise sb．on sth．／to+动词原形/advise that sb．do sth．)。remind vt.提醒，使想起(句型：remind sb．of sth．／to+动词原形；remind sb．that…)