单选题 Many people have been waiting for more than two hours at the box office so they can ______ tickets for the jazz concert.
【正确答案】 B
【答案解析】[解析] 词汇：动词
1．这是一道词汇题，选项均为动词。
2．空格内应填入一个接在助动词之后的动词，选项4个动词原形中和tickets搭配最恰当的是B选项purchase。