Judge if the translation suggested in each of the following...

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Q417521 Inglês
Judge if the translation suggested in each of the following items is grammatically correct and maintains the meaning of the original text.

“I was already confused because in India the teachers switch classes according to periods” (l.7 and 8) = Eu ainda estava confuso porque na Índia os professores trocam de salas de acordo com os períodos.
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