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10. I ate_____sandwich while I was waiting for_____20:08 train.

    A. the, a      B. the, the      C. a, the      D. a, a

C


解析:

在等20:08的火车期间吃了一个三明治,是泛指,八点零八分的火车当然是特指的了。故选C。

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