The wording is a little confusing but the best answer I can give u is-
“Since when are you in school today”
Answer: I think it is trying to ask.
Since when be in her school today ?
or when will she be in school today
Step-by-step explanation:
Desde - from, since
cuándo -when
estás - to be
en - in, on
la -the, her
escuela school
hoy - -today
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