1) We (to walk) through the forest for an hour .
2) The tourists ( not to visit) the picture gallery yet.
3) Whatyour brother___( to do)? - He( to train) in the sport centre at the moment.
4)you join us at the tour tomorrow?- I think so.
5) My parents always( to buy) the tickets to the theatre beforehand.
6)She (to prepare)for the report yesterday when the telephone rang.
7)Yesterday we( not to know) about the excursion to the museum.
8)The tickets(to sell) in the ticket-box-office.