She is on a special to lose weight.A. food; herB. food; /C. diet; herD. diet; /

问题补充：

She is on a special to lose weight.

A. food; her

B. food; /

C. diet; her

D. diet; /

答案：

A. food; her

B. food; /

C. diet; her

(答案→)D. diet; /

解析：考查短语：be on a diet在节食，lose weight 减肥，句意：她在特殊的节食来减肥。所以选D。