The sky is clouding over；we can see there a rainstorm.
A. is going to be
B. is going to have
C. will be
D. will have
网友回答
(答案→)A. is going to be
B. is going to have
C. will be
D. will have
解析：句意：天空乌云密布，看来要有暴风雨来临。根据某种迹象表明将要发生某事，用be going to do sth，且有there be结构，故选A项。