My mother goes to work by bus.
否定句：
My mother doesn't go to work by bus.
一般疑問句：
Does your mother go to work by bus?
肯定回答：
Yes,she does.
否定回答：
No,she doesn't.
劃線提問：
如果畫的是by bus:
How does your mother go to work?
如果畫的是my mother:
Who goes to work by bus?
We go to school on foot.
否定句：
We don't go to school on foot.
一般疑問句：
Do you go to school on foot?
肯定回答：
Yes ,we do.
否定回答：
No,we don't.
劃線提問：
如果畫的是on foot:
How do you go to school?
如果畫的是we:
Who goes to school on foot?
因為“兩種回答”中已經(jīng)包括否定回答了,我把你題目中要求的“否定回答”理解成“否定句”了；
另外因為沒有說清楚劃線的具體是哪部分,所以我從兩個角度理解.
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