15 About 600 residents were safely evacuated from their village before the volcano started to _______ .
(A) transform
(B) conceal
(C) erupt
(D) assemble
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統計: A(46), B(29), C(593), D(30), E(0) #3152621
統計: A(46), B(29), C(593), D(30), E(0) #3152621