将下列句子变为一般疑问句（对其进行肯答,否答和否定句）1 the desk has three legs

1 Does the desk have three legs?Yes,it does.No,it doedn't.
The desk doesn't have three legs.
2 Do Lucy and Lily have a room?Yes,they do.No,they don't.
Lucy and lily don't have a room.
3 Does her sister help you every day?Yes,she does.No,she doesn't.
Her sister doesn't help me every day.
4 Do her parents buy her a shirt?Yes,they do.No,they don't.
Her parents don't buy her a shirt.
（第4题按照her来做的）