РЕбят, помогите выполнить 3 задание по британскому

1. You have just put my pen into your pocket.
2. He will have brought my dictionary before the lesson begins.
3. Thomas came so soon from his vacation, because he had spent all his money.
4. He often helps me in English.
5. Last year my friend and I went to Moscow.
6. While the teacher was giving a lesson, a small dog walked into the room.
7. Perhaps he will arrive in time for lunch.
8. What are you doing with this room?
9. We have just got to the top in time. The sun will be rising in a minute.