Помогите пожалуйста с заданием. Перепишите предложения, подчеркните Participle I и Participle II и укажите, являются ли они определением или обстоятельством.
1. The beginning scientist studied the explosives in his father’s laboratory.
2.He had never been to school or University but had studied privately and by the time he was twenty was a skilful chemist and excellent linguist mastering Swedish, Russian, German, French and English.
3.When asked we were surprised.
4.They saw a broken apparatus in the laboratory.