Нужно составить: отрицательную форму, общий вопрос, специальный вопрос, разделительный вопрос и вопрос к подлежащему

1) He has just cleaned his room. He hasn\'t cleaned his room. Has he cleaned his room? What has he just done? He has just cleaned his room, hasn\'t he? Who has just cleaned his room? 2) They went to America last year. They didn\'t go to America last year. Did they go to America last year? Where did they go last year? They went to America last year, didn\'t they? Who went to America last year?