1)the children (arrive) at the summer camp yesterday 2)we (learn) about farm animals in the village 3)some children(swim) in the river last saturday 4)my parents (visit)my grandfather two days ago 5)william (send) e-mails to his friends on monday 6)the girls (play) volleyball in the afternoon 7)the children (have)a barbecue on the beach last month 8)at night they(sing) songs and (dance) last saturday . нужно поставить в форму слова в скобках и перевод