1. i see the snow (to stop). 2. as a rule i (to have) eggs for breakfast, but this time i (to order) porridge. 3. this is the house where i (to live). i (to live) here since childhood. 4. once in a week i (to write) letters home, but i (not to write) one this week, so my next letter must be very long. 5. she just (to ask) a porter to carry her bags as they (to be) too heavy for her. 6. i regularly (to see) him every morning at the bus-stop, but i (not to see) him these days. 7. you (to be) the first guest i (to have) since my return. 8. it (to be) afternoon. it (to stop) raining, and the sun (to come) out. 9. thank you for everything you (to do). i (to learn) a great deal from you. 10. i (to believe) mr smith (to pay) you a visit this afternoon. - yes, he just (to go). 11. i (to know) her for fifteen years, but i never (to hear) you speak like that before. 12. how long she (to be) away? it (to seem) ages.

 I see the snow has stopped. 2. As a rule I have eggs for breakfast, but this time I have ordered porridge. 3. This is the house where I live. I have lived here since childhood.4. Once in a week I write letters home, but I have not written one this week, so my next letter must be very long.5. She has just asked a porter to carry her bags as they are too heavy for her.6. I regularly see him every morning at the bus-stop, but I have not seen him these days.7. You are the first guest I have have since my return. 8. It is an afternoon. It has stopped raining, and the sun has come out. 9. Thank you for everything you have done. I have learned a great deal from you. 10. I believe Mr Smith has paid you a visit this afternoon. - Yes, he has just gone out .11. I have known her for fifteen years, but I have never heard you speak like that before.12. How long has she been away? It seems ages.