【题目】The Beatles, the supreme rock and roll band of the 1960s, were in many ways pioneers for ______ was to come, like holding concerts in sports stadiums.
A.which
B.what
C.whoever
D.that

【答案】B
【解析】考查介词的宾语从句。披头士乐队，二十世纪六十年顶尖的摇滚乐队，在许多方面，是引领潮流的急先锋，比如像在体育场举办音乐会。for是介词，后面是一个宾语从句，从句缺少引导词和主语，所填词起双重作用，故选B。