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题目内容
（西南石油大学英语（二）(专升本)）
David ________ himself while he_____ the machine.(本题5.0分)
A、 hurted… was fixing
B、 hurts… is fixing
C、 hurt…fixed
D、 hurt… was fixing
A、 hurted… was fixing
B、 hurts… is fixing
C、 hurt…fixed
D、 hurt… was fixing
参考答案