Укажите номера предложений, в которых инфинитив является подлежащим и переведите все предложения: 1. To produce negative electrodes iron and zink plates are used. 2. To produce negative electrodes was the first task of the engineer. 3. To work in this field of science was the task of the engineer. 4. To work successfully in this field of science the student must know the fundamentals of electrical engineering.

1. Не knows several foreign languages.
2. I learn English at school.
3. Usually the lessons begin at 9 o'clock.
4. Our grandparents live now in Moscow.
5. He often visited them last year.
6. As a rule I go to my school by bus.
7. She will work abroad next year.
8. She does not like loud music.
9. Your children usually ask many questions.
10. At present he works at school.
11. My brother likes music.
12. What did you do yesterday?
13. His sister will go to the seaside next July.
14. Soon we shall leave the school.
15. Who took his book yesterday?