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lEAvE的完成时是BE AwAy From还是BE AwAy要准确 有...

这个问题可以分为几种情况 1:没有具体的时间,此时不需要修改, eg :They have left already 2:强调“离开了一段时间”,一般修改为be away He has been away for a week (他已经离开一周了” 备注:针对瞬间性动词和持续性时间使用时,通常要做出...

for three years指一段时间,故用现在完成时态 left是短暂性动词,需改为延续性动词,故是been away from (强调状态) 而been away后必须加介词才能跟地点Canada 所以是been away from

答案是:你谈到的是短暂性动词的用法,当和表示一段时间的状语连用时应该变为标委表示状态的或者延续性的动词,比如:buy --have borrow --keep start --be on leave -be away (from) die--be dead join --be + a /an+成员 /be in +组织 等 ~手...

leave是瞬间动词,可以用在现在完成时,但动作不可延续。 例:My brother has left here. 但不可以说My brother has left here for 3 years. 要说My brother has been away from here for 3 years.

be away ( from )

例如: He is about to leave for Beijing. 他马上要去北京。 注意:be about...四、现在完成进行时主要用于:表示过去开始的某一动作一直持续到现在,以至延伸到...

1.How long 可以与过去时态连用。如:How long did you stay there? 2.How long did she leave ? 句子不正确。不能和终止性动词连用,不管是现在...

Professor has been leave us,but he always in our heart。

He is about to leave for Beijing. 他马上要去北京。 注意:be about to ...注意:并非有for 作为时间状语的句子都用现在完成时。 I worked here for more...

1. We had painted (paint) the house before we moved (move) in. 2. That rich old man had made (make) a will before he died (die). 3. They had studied (study) the map of the country before they left (leave). 4. The robbers had ru...

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