11. Переведите следующие предложения на русский язык:
1) Inspecting the motor, the engineer made some valuable remarks.
2) Having done a number of operations, the machine stopped automatically.
3) Translating the article, the student used some dictionaries.
4) After the teacher had explained the new grammar rule, he asked the students to do some written exercises.
5) Having received your message, I answered it at once.
6) When the engineer tested the engine, he applied new methods.