单选题 A rain shower ______ by cold winds is expected to reach our region by this evening.

【正确答案】 B
【答案解析】本题需选择动词的适当形式。句子的谓语是is expected to,故排除(A)accompany和(D)will accompany。a rain shower和accompany之间是被动关系,要用过去分词,故选(B)accompanied。