half+an+hour+ago

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辉欣15371292667问： half an hour ago 什么意思? - ？
隆昌县桑菊回答：[答案] 半小时前.

辉欣15371292667问： 怎么用英语说“半小时前”? - ？
隆昌县桑菊回答：[答案] 过去式 half an hour ago a half hour ago 完成式 half an hour before a half hour before 很高兴为你解答! 老师祝你学习进步! 望采纳,多谢你的问题!^_^

辉欣15371292667问： half an hour ago 什么意思?？
隆昌县桑菊回答： 半小时前.

辉欣15371292667问： half an hour中间为什么用an - ？
隆昌县桑菊回答： half an hour 意思是:“半小时” hour 是单数, 是元音【aʊ】开头,不定冠词要用an.如果是辅音开头则用a.如:half a year 半年 half a month 半个月

辉欣15371292667问： 现在完成时的具体用法 - ？
隆昌县桑菊回答：[答案] 现在完成时是由助动词“have(has)+过去分词”构成的,其规则动词的过去分词构成与过去式相同,不规则动词的过去分词... 误:The train has left for half an hour. 正:The train has been away for half an hour. 正:The train left half an hour ago. 正:It ...

辉欣15371292667问： Is he doing his homework now?(用 half an hour ago改写句子) - ？
隆昌县桑菊回答： Did he do his homework half an hour ago? Was he doing his homework half an hour ago? 都是对的

辉欣15371292667问： 1.The film began half an hour ago. - ？
隆昌县桑菊回答： 1.The film has been _on____ __for___ half an hour2.I want to rent my house while I _am____ _away____.

辉欣15371292667问： 句型转换He left school half an hour ago.【改为同义句】He - - - -- - -- - -- - school - - - half an hour ago .【每空一词]？
隆昌县桑菊回答：He has been away from school since half an hour ago

辉欣15371292667问： half his age什么意思 - ？
隆昌县桑菊回答： 他年龄的一半,同样的例子还有half an hour(半小时),这是一种固定结构

辉欣15371292667问： The film finished half an hour ago.(改为同义句) - ？
隆昌县桑菊回答： the film has been on for half an hour

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