9. Замените определительные придаточные предложения оборотом с причастием I. 1. When I was studying advertising materials,

1. When I was studying advertising materials, our manager found out many interesting things. — Studying advertising materials, our manager found out many interesting things. 2. He was reading the letter, when he was talking to somebody on the phone. — Reading the letter, he was talking to somebody on the phone. 3. We managed to sell more goods after we had reduced the price. — Having reduced the price, we managed to sell more goods. 4. Last week my secretary sent you the letter in which she pointed out the prices for our goods. — Having pointed out the prices for our goods, my secretary sent you the letter last week. 5. He left after he had discussed the terms of delivery. — Having discussed the terms of delivery, he left.