1. Nick showed the teacher the picture which he had drawn.
2. The boy gave the girl the flowers which he had brought from the field.
3. Mother saw that Nick hadn't washed his hands.
4. I didn't know that my friend hadn't come yet.
5. When I woke up yesterday, parents already had gone to work.
6. The children thought that his father hadn't come home yet.
7. Mary told us that she had cooked a good dinner.
8. Yesterday I found the book which I had lost in summer.
9. When we came to the station, the train had already left.
10. I had finished my test by the lesson was over.
Объяснение:
1.Nick showed the teacher the picture which he had drown.
2. The boy gave the girl the flowers which he had brought from the field.
3. Mother saw that Nick had not wished his hands.
4. I knew that my friend had not come yet.
5. When I woke up yesterday, parents have already gone to work.
6. The children thought that his father had not come yet.
7. Mary told us that she had cooked a good dinner.
8. Yesterday I found the book which I had lost in summer.
9. When we come to the station, the train have already left.
10. I had finished my test by the lesson was over.