Выберите правильный ответ 1) Вarbara might be/ might have been asleep

Выберите верный ответ 1) Вarbara might be/ might have been asleep when you called her. 2) Jane must/ must to have been with Peter because Tom says he saw them together. 3) Jane can39;t have been/ be with Tom because they broke up last week! 4) I shouldn39;t have tell/ told everyone what Tania told me. 5) When I was at school, I couldn39;t have swum/ couldn39;t swim, but now I can. 6) You must be/have been mad if you think George has changed!