10.for some fifteen minutes he (write) in silence without once raising his eyes from what he (write). 11. we (walk) for some time. the road (get) worse, just a narrow goat trail. 12.you (leave) us soon. it (get) colder every day. 13.we were friendly at school. i still (see) him from time to time. 14.you (hear) from me one of these days 15. phone as late as you can i (be) up. i (watch) the football game on tv. it’s the semi-finals tonight . 16. the rain started when i (wait) for my bus. 17. why did you speak to him so ? he only (try) to help 18. i hate the place in autumn. it (rain ) when we came and it (rain) when we left

10.For some fifteen minutes he was writing in silence  without once raising his eyes from what he wrote.11. We will be walking for some time. The road got worse, just a narrow goat trail. 12.You will leave us soon. It gets colder every day.13.We were friendly at school. I still see him from time to time.14.You heard from me one of these days 15. Phone as late as you can I will be up (здесь наверно запятая пропущена, иначе не преложение, а какой gibberish) I will be watching the football  game on TV. It’s the semi-finals  tonight .16. The rain started when I was waiting for my bus.17. Why did you speak to him so ? He only tried to help 18. I hate the place in autumn. It was raining when we came and it was raining when we left