_we have to clean the classroom after school?--Yes,you___ A.Can can B.Do do

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_we have to clean the classroom after school?--Yes,you___ A.Can can B.Do do

B
陈述句 we have to clean the classroom after school.谓语是Have
变为一般疑问句,助动词do提前:Do we have to clean the classroom after school?回答 Yes,you do.

B. Do, do

问句的助动词是do,所以,回答也用do。

Can.
我们是否......
你可以

B正确。

意思:
---我们放学后得打扫教室吗?
---是的,你们得打扫。