the temperature might drop, coal was prepared for warming.
A. To consider
B. Considered
C. Considering
D. To be considered
网友回答
A. To consider
B. Considered
(答案→)C. Considering
D. To be considered
解析：
考查非谓语动词。句意：考虑到气温要降，正在准备煤炭取暖。现在分词表示正在进行的伴随性动作，结合语境可知选C。