the missing boys were last seen ____near the river A.playing

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the missing boys were last seen ____near the river A.playing B.play C.played D.to play
但是see的被动语态不是 see sb to do ..

首先这里肯定是被动语态were last seen,
were 是be 动词are 的过去式,此处加了 last ,表示最后被看到
其次,see sb do 或 see sb doing
前者表示动作已经完结,强调结果,后者强调动作正在发生,
句中是强调当时正在发生.
翻译:那个不见了的男孩最后一次被人看到时正在河边玩耍.

the missing boys were last seen ____near the river A.playing The missing boy was last seen ____near the river.A playing B the missing boys were last seen 空格 near the river; a:playing The missing boys were last seen playing near the river这里为什么用 The missing boys were last seen _____________ near the river The missing boys were last seen（） near the river. The missing boys were last seen___ near the river.a,playing The missing boys were last seen ____ near the river.(NMET94 the missing boys were last seen ()near the river.为什么不能选to pl The missing boys were last seen _____ near the river.为什么填pla The missing boy were last seen ________ near the river. The missing boy were last seen near the river