to get there before noon, the postman set off in spite of the heavy fog.
A. Promising
B. To promise
C. Having promised
D. Promised
网友回答
A. Promising
B. To promise
(答案→)C. Having promised
D. Promised
解析:考查分词用法。Promise与the postman构成主动关系,而且promise发生在set off之前,所以用完成时。句意:已经答应在中午之前到那里,邮递员不顾大雾就出发了。