They are late. The film for five minutes.A. has begunB. has startedC. has been onD. began

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A. has begun
B. has started
(答案→)C. has been on
D. began
解析：此题考查延续性动词或非延续性动词之间的区别。前者可以和段时间状语连用，后者不能和段时间连用。电影已经演了多久了，要用句型结构have been on +段时间。