I can't decide _______.A where to live in B where to live C what to do it Dhow to do 选哪个,为什么?

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Ican''tdecide_______.AwheretoliveinBwheretoliveCwhattodoitDhowtodo选哪个,为什么?Ican''tdecide_______.Awheret

I can't decide _______.A where to live in B where to live C what to do it Dhow to do 选哪个,为什么?
I can't decide _______.A where to live in B where to live C what to do it Dhow to do 选哪个,为什么?

I can't decide _______.A where to live in B where to live C what to do it Dhow to do 选哪个,为什么?
B
A 错在:多加了in.where 是疑问副词,不能作介词in的宾语,in 多余了.
C 错在:多加了it.what 是疑问代词,本句中,what 作do 的宾语,it 多余了.
D 错在:少加了it.是疑问副词,不能作do的宾语,所以,得额外加宾语it
希望我的回答能够帮到你,

B
其他选项语法错误