单选题 She's always the first guest______ and the last______.
【正确答案】 A
【答案解析】解析:动词不定式作定语涉及两个考点:(1)动词不定式可作定语,例如:Have you any other questionto ask?另外,有些名词后固定要求用不定式作定语,像ability,right,effort等,例如:Energy is the ability to do work.