Linda was in dilemma when she was required either to complete the dangerous travel before

Linda was in dilemma when she was required either to complete the dangerous travel before deadline or to stay where she was forever.
A. the; a
B. a; 不填
C. the; the
D. a; the

A. the; aB. a; 不填C. the; the(答案→)D. a; the解析：考查冠词的用法。不定冠词a/an表泛指，意为“一个，某个”；定冠词the表特指，或双方都知道的事物，意为“这个，那个”。in a dilemma进退两难；before the deadline在截止日期之前，截止日期是大家都知道的，用the。故选D。

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