Paragraph Four People across the northern hemisphere are facing the fact that a warming planet doesn’t get rid of winter. On Monday the heaviest snow on record plastered Seoul. In coming days, the central US will experience its most brutal cold wave in 10 to 20 years. And most of Westem Europe will be encased in a deep freeze by this weekend. 39. Winter is still c____.
【正确答案】：common
【题目解析】：题干中大致的意思是冬天是很常见的，横线上的单词就是缺少“常见”一词。
