I saw Tom yesterday.He ( )from England already.A.have been c

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I saw Tom yesterday.He ( )from England already.A.have been caming B.has come 为什么选B不选A

B 是现在完成式,不及物动词come 的完成式表示动作已经完成并对现在造成的影响.
A是现在完成进行式表示这一动作从过去开始到现在还在继续,而且不及物动词come 也不可以表延续,用于这一时态.
再问：现在完成时式的句子是不是可以不用表示延续性的动词？
再答：及物动词和不及物动词都可以用于现在完成式。但是不及物动词不可以表延续，当然也不可以和表延续的时间连用。就比如说 he has come. (come 不及物动词，不可以和表延续的时间连用，如for two days) 但是如果是可延续性动词就可以和表延续的时间连用。如he has studies English for two day. study 是延续性动词。

I saw Tom yesterday.He ( )from England already.A.have been c On my way home yesterday I saw Tom ______ some roses from a I,_______ ,have been there twice.A.too B.also C.already D.ei I'm already eating and have been for a long He must have been there yesterday,___he?A.must B.mustn't C.w 改错：I have just receive a letter from my brother.He have been I think he _(return) from England in a week. I have had a letter from tom 高一短文改错：I have been from England..（急） ——When do you r_____ from England?——I have been back for two 英语翻译Tom is my classmate.He's from England.Now I'm very happy Neither he nor I（）to Beijing.A、have been B、has been C、haven