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Question 1:
Such was the exhilaration when 58 Columbian mammoth remains were found in a sinkhole, about the size of a regulation*^*size basketball court, in 19 75. Scientists ....... that just as many or more were buried beneath the ground in the South*^*Dakota hills.
A. regulated
B. extrapolated
C. contemplated
D. excavated

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Mammoths and Mastodons | C1 – Advanced