Resposta:
e) He didn’t sell his smart phone the day before yesterday.
Essa é a certa
Explicação:
He didn’t sold his smart phone the day before yesterday. (errada pq o verbo de ação tá no passado, sendo q ja temos o passado no didn't)
He doesn’t sold his smart phone the day before yesterday. (era pra ser "didn't", como tá no passado; e seria sell, pq o verbo de ação estaria no presente.)
He doesn’t sell his smart phone the day before yesterday. (tá no presente, devia tá no passado, como didn't)
He doesn’t sells his smart phone the day before yesterday. (devia tá no passado, sells não devia ser usado pq já tem o doesn't ali)
