She is on a special to lose weight.A. food; theB. food; /C. diet; theD. diet; /

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A. food; the
B. food; /
C. diet; the
(答案→)D. diet; /
解析：考查冠词。第一空短语be on a diet  “节食”；第二空“减肥”lose weight 名词前不用任何冠词。 句意：为了减肥她在节食。