With that trust to serve all Americans and I will do my best to fulfill that duty every day as your President.
A. ing a duty
B. which es a duty
C. es a duty
D. a duty came
网友回答
A. ing a duty
B. which es a duty
(答案→)C. es a duty
D. a duty came
解析：：本句考查状语提前后，句子的语序问题。如状语提前，且句子主语不为人称代词，此时句子主语、谓语完全倒装，类似于In the front hangs a portrait.
【标签】倒装结构