You are too late. The film since half an hour ago.A. has begunB. has been onC. beganD. is

问题补充：

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

A. has begun

B. has been on

C. began

D. is beginning

答案：

A. has begun

(答案→)B. has been on

C. began

D. is beginning

解析：此题重点考察延续性动词的用法。Begin是短暂性动词不能和段时间状语连用，表示开始多长时间了要用动词短语be on。