Which pronoun agrees with the antecedent in this sentence: 'Each of the students must bring ________ own textbooks to class.'?

Which pronoun agrees with the antecedent in this sentence: 'The birds chirped happily in ________ nests.'?

Which pronoun agrees with the antecedent in this sentence: 'The teacher asked each student to bring ________ own notebook.'?

Which pronoun agrees with the antecedent in this sentence: 'Everyone should take ________ time to relax.'?

Which pronoun agrees with the antecedent in this sentence: 'The student forgot ________ books in the classroom.'?

Which pronoun agrees with the antecedent in this sentence: 'Neither of the boys finished ________ homework.'?

Which pronoun agrees with the antecedent in this sentence: 'The team celebrated ________ victory by cheering loudly.'?

Which pronoun agrees with the antecedent in this sentence: 'Each of the students must bring ________ own lunch.'?

Which pronoun agrees with the antecedent in this sentence: 'The dog wagged ________ tail.'?

Which pronoun agrees with the antecedent in this sentence: 'Each of the students must complete ________ assignments.'?