7. Изберите подходящий вариант из предложенных: 1. I tried to open/opening

7. Выберите подходящий вариант из предложенных: 1. I tried to open/opening the window, but it was too high to rich. 2. I tried to open/opening the window, but it was still too hot in the room. 3. Ill never forget to give/giving my first presentation to the Board. 4. Dont forget to look at/looking at the audience when you speak. 5. We regret to announce/announcing the death of our founder, Mr. Obuchi. 6. I regret to quit/quitting my MBA course. 7. The new product is doing really well. I think we should go on to sell/selling it for another six months at least. 8. First Ill say a little about the history of the company, then Ill go on to describe/describing our new range of products.