单选题 The animates would charge no matter how badly wounded, and in their death struggles, bellowing and rolling from side to side, they seemed to refuse to die.

【正确答案】 C
【答案解析】[解析] 它们不想死。在给出的选项中,gasp:喘气;choke:窒息,堵塞;howl:咆哮,狂嗥;puff:喷出。只有C项符合题意,可以替换画线部分词语。因此本题答案为C。