when he saw it happening,he called the police.这里的为什么用happeni
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when he saw it happening,he called the police.这里的为什么用happening?而不用happened呢?
从下文(主句)叫警察来看,此事还在进行中
所以用 see sth happening 好些.
还有,如果用happened 不能看成是过去分词,因为happen不及物,而如果看成是过去式,时态又不对
请及时采纳,不懂继续问( 天天在线 )
所以用 see sth happening 好些.
还有,如果用happened 不能看成是过去分词,因为happen不及物,而如果看成是过去式,时态又不对
请及时采纳,不懂继续问( 天天在线 )
when he saw it happening,he called the police.这里的为什么用happeni
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