If you put on more coal，the fire will .A. burn downB. burn upC. burn outD. burn to the gro

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A. burn down
(答案→)B. burn up
C. burn out
D. burn to the ground
解析：考查动词短语辨析。Burn down烧为平地；burn up烧掉；烧起来；burn out燃烧，烧尽；burn to the ground烧为平地；句意：如果你加入更多的煤炭，火就会烧起来的。故B正确。