The missing boy were last seen near the river空格处为什么不填TO BE PLAYING 感官动词被动不是要加TO吗,为什么这里填PLAYING 详细点

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The missing boy were last seen near the river空格处为什么不填TO BE PLAYING 感官动词被动不是要加TO吗,为什么这里填PLAYING 详细点
The missing boy were last seen near the river
空格处为什么不填TO BE PLAYING 感官动词被动不是要加TO吗,为什么这里填PLAYING 详细点

The missing boy were last seen near the river空格处为什么不填TO BE PLAYING 感官动词被动不是要加TO吗,为什么这里填PLAYING 详细点
see sb do
非谓语形式do 基本上是不持续的动词
I saw her come to school yesterday .
see sb doing
doing 一般是持续动词
I saw her standing in front of cinema
see sb do 就是看到一个时间点上的事情
see sb doing 看到的是一段时间的,你记住,动词一定是持续的
持续动词就是动作能保持一定时间的动词,比如说等待啦 wait 站拉 stand 睡觉拉 sleep 唱歌啦sing等
先看see的主动形式：1.see sb do .看见某人做过什么事情 2.see sb doing .看见某人正在做什么事情所以他们的被动式如下：1.see sb do.的被动形式为：sb be seen to do .2.see sb doing .的被动形式为：sb be seen doing .

the missing boy 是句子的主语，但该句子是被动语态，我们要将它改成主动语态在做题，那么就是 sb see the missing boy ____ 就是 see sb do / doing sth. 根据该题的意思，是有人最后看到那个男孩时，他正在河边玩。才符合题意。所以选 playing .

the missing boy were last seen ___near the river .A playing B to play Heavily as it rained,they were still out in s_of the missing boy. the police （）looking for the missing boy in the forestis b.was c.ared.were应该选c，但是为什么不选d呢 The old man found the missing boy ——偶然 The missing boy was l___ by police in the woods. At this moment your job is______ (find)the missing boy. when he got home,he found some pages in the book missing.为什么不用were missing The whole class ( ) searching for the missing boy when the heavy rain poured down.A. was B.were C. had been D.would be没有一个人给出了正确答案 The missing boy were last seen near the river空格处为什么不填TO BE PLAYING 感官动词被动不是要加TO吗,为什么这里填PLAYING 详细点 The missing boys were last seen playing near the river这里为什么用missing 和playing The missing boys were last seen playing near the river这里为什么用missing 和playing 而不用misse和play? The police are still s_____ for the missing boy along the river 英语翻译Although the police searched everywhere,neither the missing boy nor his dog could be found。 I saw the missing boy playing with birds in the forest变被动语态 The police____still busy for the missing boy.A.hasB.areC.isD.have lt seems that the dog knows where the missing boy is.同义句 What do you think they will --- about the missing boy?用say还是 talk Could you tell me___(在哪里)you found the missing boy?(it) 128 the missing boys were last seen___near the riverplaying to playwhy?