We don't know ______ they did it .A.how B.who C.what D.which 急用

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Wedon''tknow______theydidit.A.howB.whoC.whatD.which急用Wedon''tknow______theydidit.A.howB.whoC.whatD.whi

We don't know ______ they did it .A.how B.who C.what D.which 急用
We don't know ______ they did it .
A.how B.who C.what D.which
急用

We don't know ______ they did it .A.how B.who C.what D.which 急用
A
我不知道他们是怎么做的

A 按句子意思答

A. how
因为从句里主谓宾完整,所以不需要用关系代词
只能用充当状语的关系副词how

我认为是C

A

A. how We don't know _ how_____ they did it .
从句中有it所以排除C
从句中有they所以排除B
根据句意选A(我不知道他们怎么做的)
^_^