1. We (were walking) along the forest road when it (started) snowing. 2. This is the first time I (have  been) late for my Japanese classes.
3. It’s nearly twenty years since my father (saw) his brother.
4. When the old lady (returnes) to her flat she (see) at once that someone has broken in during her absence.
5. Then he (laid) his hand on her shoulder.
6. I wonder if Wayne is ill – he (is being) thinner and thinner.
7. As soon as you (finish) what you’re doing, I would like to speak with you.
8. We were hurrying because we thought that the bell (had rung).
9. By the time he retires Professor Baker (will have taught) more than twenty different courses.
10. In the future, people (will spend) their holiday in space.