“This English grammar video was produced by BBC Learning English for you.” Passive forms like ‘was produced’ can be tricky to understand, but that’s why we have programmes like 6 Minute Grammar.
Rob, Neil and Mike help you with this area of language: present and past passive forms.
You’ll find a quiz on our website: https://www.bbc.co.uk/learningenglish/english/course/lower-intermediate/unit-22/session-2/activity-2