1) Поставбте предложения в вопросительную и отрицательную форму
2) Поставить вопросы к выделенным словам
1. There are some "trees" in the yard.
2. "She" had "to stay" at school "after classes".
3. "My sister" goes to school at "7 o'clock".
4. "We" read "this book last year".
5. Tomorrow I shall send "a letter" to "my grandmother".