I was reading a simple story for Spanish beginners. There was a sentence which read, "A las 8 comienzan a abrir las tiendas." I interpreted it as, "At 8 am, they start to open their shops." But, the translation says, "At 8 am, the stores begin to open." and this makes sense.
I am confused about the structure of the sentence. If Las tiendas is the subject, why does it appear in the end of the sentence. Shouldn't the right translation would be, "A las 8, las tiendas comienzan a abrir."