1. When morning came, the storm had already stopped (to stop), but the snow was still falling (to fall).
2. Yesterday by eight o'clock he had finished (to finish) all his homework, and when I came (to come) to his place at nine, he was reading (to read).
3. I have been waiting (to wait) for permission to go abroad for three weeks already, but I haven't received (not to receive) the visa yet.
4. Everybody is (to be) at the door of the museum, but my friend hasn't come yet (not yet to come).
5. We were drinking (to drink) tea when the telephone rang (to ring).
6. Johnny noticed that everybody was looking (to look) at him, and he felt (to feel) shy.
7. Light travels (to travel) more quickly than sound.
8. When will he come? We have been waiting (to wait) for him for half an hour already.
9. On leaving the hall, the students thanked (to thank) the professor who had delivered (to deliver) the lecture.