Answer:
En el verano, me gustaba mucho columpiarme en el parque de mi vecindario.
Explanation:
ese means That, esa means Is, and eso means That. all together it spells out, That Is That.
So for the usted form, you use the 3rd person singular of the present subjunctive instead of the 2nd person singular present indivatice so, 'hable'
