题目详情
单选题 They ( ) on the program for almost one week before joined them, and now we () on it as no good results have come out so far
A. had been working; are still working
B. had worked; were still
C. have been working; have worked
D. have worked; are still working
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学科:[共享课]英语语法点点通
时间:2025-12-02 00:02:35
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