It _ and the streets were still wet. A.had been raining B.rained C.had been rained D.would rain
问题描述：
It _ and the streets were still wet. A.had been raining B.rained C.had been rained D.would rain
答
a ,过去完成进行时,表示当时之前一直在下雨B不行吗？了解出题人的意图很重要。语法上没什么问题。