1. At a quarter to seven they studied English.2. Yesterday from four to five o'clock in the morning it was raining.3. He was reading a book when I came.4. I read this book last year.5. I called him yesterday, but he was not at home. 6. He was watching TV when the phone rang. 7. When Mary was playing with the children, her brother was watering the flowers.8. When it was not raining, we went to the forest.9.When winter came, it snowed for several weeks.10.People got to work with great difficulty.11. Children skated near our house.