Hay is the correct pronunciation
1. To indicate a substantiation or an action on someone’s behalf
2. To show movement within, through, along, or around an area
Ayer mi amigo me sorprendió con una visita.
This sentence is grammatically correct.
The correct translation is: <em>Yesterday my friend surprised me with a visit</em>.
In the sentence there is a correct use of the past in the word "sorprendió" (surprised) that is in accordance with the time "ayer" (yesterday). In addition, it is correctly accentuated the word "sorprendió".
