Here are a few links to help you prepare the oral comprehension part of the BAC
The first one is a general explanation of the exam and some tips to help you earn points!
The second link is a channel on YouTube with different videos to help you prepare the exam. You can watch with or without subtitles and the 1 minute breaks are included in the video to put you in the real situation of the exam:
Here is just one example. You can subscribe to the channel for more videos: