Choose the pronoun that agree with its antecedent.
1. either thomas or paul will show us (his, their) drawings this afternoon.
2. both the lighting source and bill clark's insurance have (its, their) offices in this building.
3. all of the players came back on stage for (his or her, their) bows.
4. many of the rides at the fair scared (its, their) riders.
5. one of the cars on the lot needs (its, their) oil changed.