Answer:
1. les gusta
2. le interesa
3. les aburre
Explanation:
In order to properly use the unstressed pronouns of the 3rd person: lo(s), la(s), le(s) according to the general norm of general Spanish, the syntactic function of the pronoun must be taken into account first of all. , secondly, the gender and the grammatical number of the word to which it refers.