题目内容
10.Mrs.Brown had to sit down and rest every five minutes.(就划线部分提问)Howoftendid Mrs Brawn hare to sit down and rest?
分析 布朗夫人不得不每五分钟坐下来休息一下.
布朗夫人不得不多久坐下来休息一下?
解答 答案:How often.划线部分every five minutes每五分钟,表示频率,询问时用How often.表示多久,故答案How often.
点评 对划线部分提问要分析划线部分在句子中的成分,即可找出恰当的特殊疑问词.
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