英语：高考易错题85题详解

高考英语易错题85题详解

1. 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.
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

• 英语：高考易错题85题详解
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