Student or Learner
I'd like to ask a question concerning grammar.
What is the difference between these two sentences? :
When I came in, they DANCED.
When I came in, they WERE DANCING.
To me the first question is a bit unclear.
The same for example with such an example:
When I arrived, it SNOWED.
Is it different than this sentence: When I arrived, it had snowed?
Thank you for your answers, if I did something wrong, please correct me, this is my first post.
The first sentence means that when you came into the room they then began to dance.
The second says that when you walked in they were already in the process of dancing.