题目内容
【题目】Tom hears from his cousin once a week.（对划线部分提问）
_______ ________does Tom hear from his cousin?
【答案】How often
【解析】
根据划线部分为频率，对频率提问用how often，意为“多久一次”，故答案为How often。
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题目内容
【题目】Tom hears from his cousin once a week.（对划线部分提问）
_______ ________does Tom hear from his cousin?
【答案】How often
【解析】
根据划线部分为频率，对频率提问用how often，意为“多久一次”，故答案为How often。