When the policemen arrived on the scene,torn

来源：百度知道编辑：UC知道时间：2024/06/05 02:34:13

pieccs of paper were everywhere__.
A.seen B.to be seen C.to see D.being seen
b是什么理由？A也是被动嘛。were seen也通的呀？torn piece were everywhere seen不行吗？

报纸被警察看见所以用不定式报纸是主语被看是被动说以要用不定式to+v如果是报纸主动去看警察就用v-ing 从when和arrived以及were看出这件事是发生在过去的事情所以句子的时态是一般过去式因此用be seen 不定式的被动态就是B的形式如果你问为什么用to那个简单以为前面已经有了were了一个句子里面不能有两个谓语你不知道吗？

When the police arrived, the man for 10 minutes. The police ______ outside when Mr.Bush reached the airport. When the police arrived,the crowd scattered _____all directions. When she heard the explosion, she had the ___ to telephone the police immediately. The police---after the criminal The police looked for clues. The police was very good. Her first reaction______ the police. police+? The police caught him ____a car.