Rather than in the crowded bus, they preferred home A. to ride , walkB. riding , walking

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A. to ride , walk
B. riding , walking
C. ride , walk
(答案→)D. ride, to walk
解析：此处考查prefer. . . rather than . . .的用法。这里rather than前后是并列关系，且本句是倒装句。此处rather than后省略了不定式符号to。句意：他们宁愿步行回家也不愿挤公共汽车。