The missing boys were last seen near the river.A. to playB. to be playingC. playD. Playin

发布时间:2020-08-17 07:25:41

The missing boys were last seen      near the river.
A. to play
B. to be playing
C. play
D. Playing

网友回答

A. to play
B. to be playing
C. play
(答案→)D. Playing
解析:考查感官动词的复合结构。所填的词为主语补足语,因其后有明确的地点,补足语表示动作当时正在进行中,所以只能使用playing。也就是说,这里使用的是see sb. doing sth.这一结构,而不是see sb. do sth.这一结构。句意:这个失踪的男孩最后一次被看到时正在河边玩。
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