Question

We were strolling in the park when suddenly it _________ (to thunder). had thundered thunders The first action was in progress when suddenly the second one happened in the middle of the first action. For the action that was in progress we use the Past Continuous Tense, the action that occurred in the middle of the first one we should use the Past Simple Tense.

Accepted Answer

was thundering thundered c

Question	We were strolling in the park when suddenly it _________ (to thunder).
A	was thundering
B	had thundered
C	thundered
D	thunders
Answer	c
Remark	The first action was in progress when suddenly the second one happened in the middle of the first action. For the action that was in progress we use the Past Continuous Tense, the action that occurred in the middle of the first one we should use the Past Simple Tense.

Action Suddenly Thundered Progress Middle Past Strolling Park