1) Kevin wanted to know if Tom had introduced himself then.
2) Bob added that he had appeared in the film on television.
3) Greg wondered if they had offered their new plan to the crew.
4) Sarah explained that the previous day they had bought some books for their children.
5) Mr Ross added that his son had finished one of the Harry Porter books the previous month.
6) Ron wondered if they had visited the actors a week before.
7) Tom explained that he had returned the books to the library the previous Saturday.
8) Mary wanted to know if they had enjoyed the performance.