Past of be verb

a) Let's review the past to be with the video.

b) We're going to play the games at:
https://learnenglishkids.britishcouncil.org/es/node/14107
https://www.funbrain.com/games/grammar-bees

c) We're going to listen the song and do the exercises.

Pink Floyd - Listening Comprehension Exercises from Telma Lenita Zen