Take a look at these questions and find the right tense to fit the context.
You find a simple explanation after each question.
When you have done it once, do it again but QUICKER ! How fast can you go ?
Find the correct tense
When you feel comfortable with the quiz try a podcast to see if you can follow the conversation. In the podcast A Few Days in New York you can hear the speaker using the Simple Past and Present Present abundantly.