问题补充：
To enjoy the scenery, Sara would spend long hours on the train travel by air.
A. as to
B. other than
C. instead of
D. rather than
答案：
A. as to
B. other than
C. instead of
(答案→)D. rather than
解析：考查句型：would do rather than do 宁愿做某事而不愿做什么事，句意：为了欣赏景色，萨拉宁愿花长时间乘火车也不愿意乘飞机旅行。所以选D。
