Past simple and Past continuous

Simple past - past continuous, una ficha interactiva de Grassi
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Forma interrogativa Past Simple

Present simple - present continuous - past simple, una ficha interactiva de Mar_Blancafort
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Past simple Afirmativa y negativa and Used to

Past simple tense, una ficha interactiva de jecika
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Used to and didn't use to, una ficha interactiva de pililab
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