She hardly had anything for breakfast,had she?这句话哪里错了

She hardly had anything for breakfast,had she?这句话哪里错了

题目
She hardly had anything for breakfast,had she?这句话哪里错了
答案
She hardly had anything for breakfast,had she?
had she应该是did she
因为这里had breakfast 吃早饭,had 是实意动词,反义疑问句应该用did代替.
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