When I got to the cinema the film for five minutes.A. had begunB. has been onC. has begu

问题补充：

When I got to the cinema, the film for five minutes.A. had begunB. has been onC. has begunD. had been on

答案：

电影开始了五分钟，for five minutes为一段时间要求谓语动词要用延续性动词，故A和C先排除，而从句的动作发生在主句动作之后。