85. (单选题) We___it without your help.(本题1.0分) A、 couldn.t have done B、 couldn.t do C、 could have done D、 could haven.t done

85. (单选题) We___it without your help.(本题1.0分)
A、 couldn.t have done
B、 couldn.t do
C、 could have done
D、 could haven.t done

出自：陇东学院-大学英语(专升本)

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