In which of the following sentences does the pronoun come before the antecedent? a. he would get very cold without it. b. her caring made keiko a good sister. c. keiko handed her little brother his coat. d. they went out into the snow together.

The answer is (B). The pronoun is a word that is used to replace nouns (e.g. "she" for Mary, "him" for Joe, "it" for cat). The antecedent is that noun (Mary, Joe, cat).

Choice B is the only one where the pronoun "her" comes before the antecedent "Keiko".

the answer is "the man who came here yesterday was selling magazines."