Pleasethe radio, Let’s listen to the morning news.A. turn offB. turn upC. turn downD. turn

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A. turn off
B. turn up
C. turn down
(答案→)D. turn on
解析：turn off关掉，拐弯；turn up 出现，发生；turn down 关小，调低；turn on打开，发动。句意：请打开收音机，让我听听早上新闻。结合语境可知选Ｄ。