题目内容
13.I exercise at least twice a week.(就画线部分提问)How often do you exercise?
分析 我一周锻炼两次.
你多久锻炼一次?
解答 答案:How often.
划线部分twice a week一周两次,提问用疑问词how often多久一次,故答案是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,特殊疑问词之后紧跟一般疑问句.
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