Look at those clouds! It ___________!
-
's going to rain
-
'll rain
-
's raining
-
's rained
A
Correct answer
Explanation
Going to future ('s going to rain) predicts based on present evidence (dark clouds). Will future is less appropriate for evidence-based prediction. Present continuous ('s raining) suggests it's happening now. Present perfect ('s rained) doesn't work for future prediction.