You are too late. The film ______ since

问题选择题

You are too late. The film ______ since half an hour ago.

A．has begun

B．has been on

C．began

D．begins

答案

答案：B

考查时态。句意“你太晚了。电影已经开始半小时了。”since从句表示一段时间，前面用现在完成时，begin是短暂性动词，不能与一段时间连用，需要转换为be on。故选B。