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肯定句怎么变为疑问句
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肯定句怎么变为疑问句
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如果肯定句中有be动词、情态动词或助动词have,则直接将be动词、情态动词或助动词have提到主语的前面.如：
She is a teacher.----Is she a teacher?
I can swim.----Can you swim?
Jim has finished his homework.----Has Jim finished his homework?
如果肯定句中没有be动词、情态动词或助动词have,就要借一个无意义的助动词do/does/did.如：
She teaches in a middle school.----Does she teach in a middle school?
She is a teacher.----Is she a teacher?
I can swim.----Can you swim?
Jim has finished his homework.----Has Jim finished his homework?
如果肯定句中没有be动词、情态动词或助动词have,就要借一个无意义的助动词do/does/did.如：
She teaches in a middle school.----Does she teach in a middle school?
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