the film has been on for fifteen minutes这是不是个病句?on 和for两个介词居然连在一起了耶!SOS!QUICK!

The film has been on for five minutes是什么意思 292.The film ______for five minutes.A.has begun B.had begun C.has been on D.had been on the film has been on for ten minutes 求个同义句啊the film has been on ___ ten minutes ____ 英语现在完成时 How long has the film been on?为什么要用on?我认为答案是How long has the film been 空 has the film been on.Ahow long Bhow often Ch空 has the film been on.Ahow long Bhow often Chow soon Dhow far 选择并翻译 e：The film has been on for 1 hour.= The film ____________since 1 hour ago.呵呵，RTe：The film has been on for 1 hour。= The film ____________since 1 hour ago The film has been on for half an hour.（改为同义句）It----half an hour ------the film--------。 The film has been on for half an hour.（改为同义句）It----half an hour ------the film--------. the film has been on for over an hour 改为同意句 the film （）over an hour ago The film has already been on for ten minutes 变一般疑问句 The film has been on for half an hour的同义句 The film has been on for half an hour的同意句 the film ( )about ten minutes.A,is on B,started C,has started D,has been on 为什么不是C When I got to the cinema ,the film ( )for five minutesA had been onB has been on How lang _____ the film _____ when you got to the cinema?A.has;been on B.has ; begun C.had;begum D.had ; been on When he got the cinema,the film （ )for helf an hour.A.has begun B.had begun C.has been on D.had been on The film ____ for five minutes.A has begun B had begun C has been on D had been on 选哪个?为什么, The film ____for half an hour.A.has begum B.has been begum C.has been on D.began 选什么 为什么