He'sworkedtheresince1978,______

发布时间:2020-07-28 08:43:55

He's worked there since 1978, ________ ?A.isn't heB.hasn't heC.doesn't heD.wasn't he

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B解析因为句中的时态是现在完成时,所以He's,不是He is 的缩写而是He has的缩写,所以选B.
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