1) Have you ever seen the film “Back to the Future”? If so, what’s it about?

2) Name the characters in “Big Bang Theory” and what they do + their personality traits.

3) Watch this video and answer the following questions:

– What are they discussing?
– Why does Sheldon correct Leonard? What was Leonard’s mistake?
– Is Sheldon’s correction accurate?

4) What future forms do we use in English? Which tense is Sheldon making reference to when he corrects Leonard?