Question

My sister should see a doctor改成一般疑问句,肯定回答,否定回答？

Answer 1

Should your sister see a doctor？

肯定回答 Yes,she should.

否定回答 No,she shouldn't.

句子中有情态动词 should，变一般疑问定句时直接把情态动词提到主语的前面。

Answer 2

Is your sister a doctor? 含有be动词句子变一般疑问句，be 提前，根据逻辑需要改变人称。