С2the (not to visit) the picture gallery yet .3 what do)? he train) in the sport centre at the moment. join us at the tour tomorrow? — l think so.5 my parents buy) the ticets to the theatre beforehand.6) she (to prepare ) for the report yesterday when the telephone rang.7)yesterday you to know ) about the excursion to the museum.8 the sell) in the ticet box office.

They haven't visited the picture gallery yet.
What is your brother doing? He is training in the sport center at the moment.
Will you join us at the tour tomorrow? I think so.
My parents has always bought the ticket to the theater before. ...
She was preparing for the report yesterday when the telephone rang.
Yesterday you didn't know about the excursion to the museum.
The tickets have sold in the ticket box office.