Найдите и исправьте ошибки в предложениях. В ответ запишите только исправленное слово или словосочетание. 1)

When I came in, the discussion had been interrupted. 2) If you will put salt on ice, it will melt. 3) I regret telling you the bad news. 4) After graduating from the institute I had come to St. Petersburg. Выберите и запишите номер грамматически правильного предложения. 1) By the time I reached Prague my friends have already passed their exams. 2) The article will be being typed only tomorrow. 3) They may have a good time in the cinema tonight. 4) Larry was resting in Spain since 1997.