"Do you like spicy black pudding? Yes."
Translation:An toil leat marag-dhubh spìosrach? Is toil.
No, why would it? It’s a different tense. Is toil leam… means I like… in the present tense. Bu toil leam… is either the past I liked… or conditional I would like… (also used for politely expressing wishes, like in English).
Also, in this exercise it is a question, so you need an toil leat…? for do you like…?. If it were a conditional would you like…? then you’d use am bu toil leat…?.