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题目内容
(长春工程学院-大学英语4(专升本))
33. (单选题) They went _____ the schedule for the conference again and again until they felt satisfied with every detail of it.(本题2.0分)
A、 our
B、 up
C、 over
D、 by
A、 our
B、 up
C、 over
D、 by
参考答案