Помогите срочно надо выберите правильный ответ 1) Вarbara might be/ might have been asleep when you called

Помогите срочно надо выберите правильный ответ 1) Вarbara might be/ might have been asleep when you calledher. 2) Jane must/ must to have been with Peter because Tom says he saw them together. 3) Jane can't have been/ be with Tom because they broke up last week! 4) I shouldn't have tell/ told everyone what Tania told me. 5) When I was at school, I couldn't have swum/ couldn't swim, but now I can. 6) You must be/have been mad if you think George has changed!