Написать хвостиковый вопрос We had a longer stop in Pskov three hour ago. Our bus is ahead of schedule Fred always pays cash The train is due to arrive in Berlin at 6.00

1. We had a longer stop in Pskov three hour ago, didn't we? (У нас была более длительная остановка в Пскове три часа назад, не так ли?) 2. Our bus is ahead of schedule, isn't it? (Наш автобус опережает график, не так ли?) 3. Fred always pays cash, doesn't he? (Фред всегда платит наличными, не так ли?) 4. The train is due to arrive in Berlin at 6.00, isn't it? (Поезд должен прибыть в Берлин в 6.00, не так ли?)