The crazy fans ________ patiently for two hours, and they would wait till the movie star arrived．

A.were waiting

B.had been waiting

C.had waited

D.would wait

答案及解析： B

解析：

从they would wait till the movie star arrived可看出：他们一直在等，并且还要继续等下去。从句中的时态发生于过去，所以用过去完成进行时，强调从过去某一时间开始，一直持续到当时，并且还有可能继续下去。