问题 更新时间2023/4/3 12:59:00 They ______ on the program for almost one week before I joined them, and now we ______ on it as no good results have come out so far. ( )(本题3.5分) A、 had been working; are still working B、 had worked; were still working C、 have been working; have worked D、 have worked; are still working 答案 登录 注册 标准答案：A 出自：青书学堂 >> 黑龙江省教育学院口语(专升本)
问题 更新时间2023/4/3 12:59:00
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问题 更新时间2023/4/3 12:59:00
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