单选Where are the twins I saw them ____ out for a walk just now.A.to go B.goC.gone D.went要说明为什么选你选的这个答案啊!

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单选Where are the twins I saw them ____ out for a walk just now.A.to go B.goC.gone D.went要说明为什么选你选的这个答案啊!
单选
Where are the twins
I saw them ____ out for a walk just now.
A.to go B.go
C.gone D.went
要说明为什么选你选的这个答案啊!

单选Where are the twins I saw them ____ out for a walk just now.A.to go B.goC.gone D.went要说明为什么选你选的这个答案啊!
B see somebody do(doing) something.当看到的动作正在进行时,就用doing,当看到的动作已经完成及整个过程时就用动词原型!很典型

B
See sb do/doing sth
表正在发生或过程用doing,表示看见过或结果用do

B.go
see sb. do这种结构中,see 是谓语动词,sb 是宾语,do是省略了to的不定式做宾语补足语。应该这没用的动词除了see之外还有watch, hear, make等。

选B
因为see sb. do sth./ doing sth./ see sth. done 是固定搭配

选b.saw sb. do sth.
a,d去掉.
C:have gone to固定搭配.
不是在考试吧...

B

see 的用法:
1.see sb. do sth.
2.see sb. doing sth.
3.be seen to do/doing sth.
just now表示刚刚 刚才,整个句子是过去时.