Question

Which pronoun agrees with the antecedent in the sentence? Could one of the boys bring __________ keys? A. theirs B. his C. his or her D. their

Answer 1

B. his
Could one of the boys bring his keys?

A. is wrong because it's one boy, theirs implies more than one.

C. is wrong because we know it's a boy.

D. is wrong because it's one boy, their implies more than one.

Hope this helps. :)