The subjunctive ait (not a ). The book explains that bien que forces the subjunctive, while malgré + noun does not.
Pair it with the companion Vocabulaire Essentiel du Français B1 (also with audio) for a complete B1 self-study kit. Have you used this book? Do you struggle with a specific B1 grammar point like the subjunctive or pronoun order? Let me know — I can suggest targeted audio drills. grammaire essentielle du francais b1 audio
Then the audio gives you: "Bien que fatigué, il (venir) quand même." (Pause) Answer: vienne . The subjunctive ait (not a )