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题目内容
（西南石油大学英语（二）(专升本)）
Up to now, I _______ very successful.(本题5.0分)
A、 am not
B、 haven.t been
C、 was not
D、 were not
A、 am not
B、 haven.t been
C、 was not
D、 were not
参考答案