At my school work... - Czy to ma sens?

Cześć, czy ktoś może mi powiedzieć, czy odpowiedź na to pytanie jest poprawna?
"Who works at your school and what do they do?"

At my school work two cleaners. They mop the floors and wash the windows.

Czy to "at my school work(...)" jest poprawne, czy może trzeba napisać "there are two cleaners at/in? my school"?

Z góry dziękuję za pomoc.

druga wersja jest poprawna
przed work musi byc podmiot, a 'at my school' nie jest podmiotem

zamien lepiej na 'clean the windows'
tutaj masz 3 rozne mozliwosci zapisania tego zdania:
At my school two cleaners work. or Two cleaners work at my school.
At my school there are two cleaners. or There are two cleaners at my school.
At my school there are two cleaners working. or There are two cleaners working at my school.