замените действительный (активный) залог страдательным

1. She makes mistakes in spelling.
2. They enjoy their English lessons.
3. The crowd waited a long time to see the famous actor.
4. He worked in that Institute for many years.
7. Напишите следующие предложения в вопросительной форме, употребляя во¬просительные слова, данные в скобках:
1. The performance lasted two hours. (How long)
2. He went to London to see some friends. (Why)
3. Speech is a kind of vibration. (What)
4. Painting is an ancient art. (What)

8. Образуйте Past Indefinite (Simple) и Participle II от следующих глаголов. Проверьте себя по таблице неправильных глаголов:
to build, to think, to go, to see, to give, to meet, to write, to read, to know, to take, to teach, to feel, to have, to come, to begin, to find, to get, to say, to tell, to put, to leave, to do, to sing, to lose, to stand.

9.Употребите глаголы, данные в скобках, в Present, Past, Future Continuous
(Progressive):
1. Listen! Someone (knock) at the door.
2. The bus (stop) for us now.
3. The accident happened while they (travel) in the South.
4. When I got up this morning, the sun (shine) brightly.
5. I (wait) on the corner for you at the usual time tomorrow morning.
6. It probably (rain) when you get back.

10. Замените в следующих предложениях действительный залог страдательным. Переведите предложения на русский язык:
1. The little boy ate the cake.
2. The teacher corrects our exercises at home.

11. Переведите предложения на русский язык:
1. The book will be published in spring.
2. The class is taught by Mr. Smith.
3. It was designed by a French engineer.
4. This book is always read by the students of the first course.