Вопросы:1. Have I met him before?2. Have they learned the new rule?3. Has he finished his work?4. Has the boy woken up?5. Has she made this mistake before?6. Have they had a long walk today?Отрицат.форма:1. I haven't met him before.2. They haven't learned the new rule.3. He hasn't finished his work.4. The boy hasn't woken up.5. She hasn't made this mistake before.6. They haven't had a long walk today.