Julian has been in the music business since he was 19这句话的语法,

Julian has been in the music business since he was 19这句话的语法,

题目
Julian has been in the music business since he was 19这句话的语法,
答案
Julian has been in the music business since he was 19.该句 是一个现在完成时的句子, have /has been +一个句子 是现在完成时态. 后面的since 则表示一个 时间点 ,现在完成时 表示 过去的动作 一直持续到现在 ...
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