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35. From time to time a crocodile has snatched someone _______ he or she is even aware that the crocodile is there.

A. when                B. until         C. since            D. before

試題詳情

34. _____ unemployment and crime are high, it can be assumed that the latter is due to the former.

A. Before               B. Where           C. Unless        D. Until

試題詳情


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