1, 3, 5 Present Simple - но в 5м есть Passive voice (Пассивный залог)- from being kept
2, 6, 7, 8 Past Simple - но в 7м- прошедшее время модального глагола have to - had to
4 Present Perfect
Альтернативный вопрос - это вопрос с или (or)
Did anybody know about a plan or a permission?
Is your roommate a real chatterbox or a clam (taciturn)?
Did they seem to be more real or unreal?
Are you having a two-minute walk from here or from there?