He was seen (go) ______ out two hours ago.to gosee 是感官动词,当它作谓语时,宾语补足语通常用省略,。的不定式

游客2023-09-26  28

问题 He was seen (go) ______ out two hours ago.

选项

答案 to go

解析 see 是感官动词,当它作谓语时,宾语补足语通常用省略,。的不定式。但是当see 用作被动语态时,to不能省略。类似的感官动词还有notice,watch,make,feel,observe等。比如:A stranger was seen to walk into the building.(有人看到一个陌生人走进了大楼。)
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