Hi there, Roberta!
don´t use the article THE before public buildings, institutions, means of transport (indefinite)
Namely, we are talking about school, church, etc in a general way. Not one (or not a group) in a particular.Mandy doesn't like school.
We go to school by bus.
Some people go to church on Sundays.
public buildings, institutions, means of transport are specified/defined
(definite), then it takes the definite article THE before it. That is, we are talking a given school, a given church, etc. The
school that Mandy goes to is old.The
bus to Dresden leaves at 7.40.The
round church in Klingenthal is famous.