．— What terrible weather! It for ten days, more or less.
— The rain season will last about a month.
A. rains
B. is raining
C. rained
D. has been raining
网友回答
A. rains
B. is raining
C. rained
(答案→)D. has been raining
解析：考查时态：句意：多可怕的天气！已经下了大概10天的雨了。--雨季会持续大约一个月。说明雨从过去到现在一直持续了10天，用现在完成进行时，选D。