You use present perfect when you've STARTED SOMETHING IN THE PAST AND IT'S THAT THING/EVENT IS CONTINUED TO THE PRESENT *or* RELATED to sth you are saying in the present.
中文是??
我英文不太好,請大家幫幫手翻譯,別用網上的
2010-10-23 9:08 pm
回答 (2)
2010-10-23 9:15 pm
當一件事發生在過去而直至現在.或該事與現在是有關聯的,用現在完成式
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原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101023000051KK02255