I've worked here since I__________ Harvard Business School.
I've worked here since I__________ Harvard Business School.
A、leave
B、left
C、have left
D、had left
【正确答案】:B
【题目解析】:since前如果谓语动词为现在完成式,since后谓语动词为过去式。B项是正确的。句意为:“自从我离开哈佛商学院就一直在这儿工作。”
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