题目内容
5.They have been collecting shells for 3years.(对画线部分提问)Howlonghave they been collecting shells?
分析 他们已经收集贝壳三年了.
他们收集贝壳多久了?
解答 答案:How long.划线部分for 3 years表达的是动作持续了多久,提问用how long多久,故答案是How long.
点评 how long意为"多久、多长时间",主要是对一段时间进行提问,答语通常是(for)three days/weeks/months等时间段,它可用于各种时态.
How long do you stay in Beijing every year?每年你在北京住多久?
How long have they lived here?他们住在这里有多久了?
-How long were you not at school last year?去年你多久没上学?
-About two weeks.约两周.
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