单选题 Had the weather been good, the children ______ out for a walk.
【正确答案】 B
【答案解析】[解析] 当虚拟语气中含有were,had,should,would等词时,可以省略if,把这些词放在主语之前。例如:Should I meet her,I would tell her. (万一我见到她,我会告诉她的。)Were I in your position,I would do it better. (如果我处在你的位置上,我会做得更好。)Had they made preparations, they would have succeeded. (如果他们准备了的话,他们应该能成功的。)本句为和过去的事实相反的虚拟语气,因此选B。