Fill in the blank with the correct imperfect conjugation of the verb in parentheses.En ese tiempo tú ________un niño pequeño. (ser)

The subject is tú, so the verb needs the second-person singular form. In the imperfect tense, ser conjugates as eras for tú. The completed sentence is “En ese tiempo tú eras un niño pequeño” (“At that time you were a small child”).

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