Questão de Língua InglesaSecretaria de Estado de Educação - MG (SEE/MG) - Professor de Educação Básica Área LEM / Inglês

incorrect because the action referred to began before another past action, so that the Past Perfect should be used instead.

correctly used, but the Simple past could also be used without any change in meaning.

correctly used because it refers to an action that started in the past and continues in the present.

incorrect and should be replaced by the Present Continuous because the action occurs repeatedly in the present.