题目

--- I hear you _______ at Smith’s. --- Yes, I________there for about three months. A．work; had been working   B．worked; was working C．are working; have been working  D．worked; have worked   答案： C   考查动词时态。句意：---我听说你在史密斯那里工作。---是的，我一直在那里工作了3个月。根据句意选C。  

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