题目内容
【题目】张先生来北京多久了？
【答案】How long has Mr. Zhang been in Beijing?
【解析】多久：how long；根据汉语提示和语境可知用现在完成时，have/has come不能和时间段连用，来某地多久用have/has been in；结合汉语提示和语境可知答案是How long has Mr. Zhang been in Beijing?
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题目内容
【题目】张先生来北京多久了？
【答案】How long has Mr. Zhang been in Beijing?
【解析】多久：how long；根据汉语提示和语境可知用现在完成时，have/has come不能和时间段连用，来某地多久用have/has been in；结合汉语提示和语境可知答案是How long has Mr. Zhang been in Beijing?