I got a quiz question from the "a besoin de" lesson:
Cette année, Michaël ________ perdre du poids.
I was using "doit" here, but the correct was "a besoin de"
I couldn't find a full explanation why the second one is correct but the first one not.
Does the meaning change in this case (I could imagine that doit would be closer linked to a real need, e.g from a medical perspective, while besoin would be more linked to his wish to lose weight, but no idea if that's the case).