mary has a black dog变一般疑问句作肯定否定回答和they have a basketball变一般疑问句作肯定否定回答

问题描述:

mary has a black dog变一般疑问句作肯定否定回答和they have a basketball变一般疑问句作肯定否定回答

Does mary have a black dog?
Yes,she does
No,she doesn't
Do they have a basketball all?
yes,they do
No,they don't