A knock at the door( )him.a .interrupted b.was interrupted c.interrupting d.was interrupting选哪个,为什么

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Aknockatthedoor()him.a.interruptedb.wasinterruptedc.interruptingd.wasinterrupting选哪个,为什么Aknockatthed

A knock at the door( )him.a .interrupted b.was interrupted c.interrupting d.was interrupting选哪个,为什么
A knock at the door( )him.a .interrupted b.was interrupted c.interrupting d.was interrupting
选哪个,为什么

A knock at the door( )him.a .interrupted b.was interrupted c.interrupting d.was interrupting选哪个,为什么
选A
敲门声打断了他.
这是简单的过去式句子.
如果选B,是被动.就要说 he was interrupted by a knock at the door.
如果选C,是进行时,缺少动词be,并且interrupt是短暂动词,不对
如果选D,是过去进行时,interrupt是短暂动词,不对

A