The girl was last seen ____by the rive.A.to play B.Playing C.Played D.to be playing

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The girl was last seen ____by the rive.A.to play B.Playing C.Played D.to be playing
The girl was last seen ____by the rive.A.to play B.Playing C.Played D.to be playing

The girl was last seen ____by the rive.A.to play B.Playing C.Played D.to be playing
B
主要考查see sb.do/doing sth.
看到某人做某事(指整个过程)/正在做某事
她被最后一次看到正在河边玩

B playing
被动变主动,就看得清楚了
The girl was last seen playing by the river
= Someone last saw the girl playing by the river.
see sb. doing 看见某人做某事
最后一次看到这个女孩时她在河边玩。

我理解的意思是这个女孩刚才被看到正在河边玩耍。所以我选B。
to play 一般指将来要发生的
played 是已经发生的
to be playing 是指被动,女孩是被别人看到在玩,但不是女孩被动的玩
所以我选B

playing
最后看到的时候是girl在"playing"

A
see是感官动词,后面可加动词原形或不定式(see sb. do/doing sth.)
这里是看她在河边玩过了而不是正在玩,所以应选择短语see sb. do sth.
这个句子中小女孩被看到,用被动语态,感官动词后的to要还原,写为see sb. to do sth.

playing
see sb doing sth的被动语态就这样的 没有其他to或者系动词
小女娃是最后一个被看到在河边玩耍的人哈。

A