1. Does it often rain in this part of the world?
2. I didn't see a light in the window when i was passing by yesterday.
3. It is raining now. It was raining the whole day yesterday.
4. He was sleeping when mother came back.
5. I arrived yesterday. Tom met me on the station.
6. I don't know spanish but i am learning it now.
7. Does John like to walk in the garden?
8.  Diana will come to the party tomorrow.
9. My wife is making apple cake now.
10. Are they walking in the garden now? - No, they aren't. They are reading a new book.
11. We will meet at the station tomorrow.
12. Tomorrow I will prepare his report the whole day.
13. They were waiting in the room when we arrived.
14. Our lesson on English was last Monday. The next lesson will be tomorrow.
15. Ann is in his room. She is playing the piano. 
16. My brother doesn't smoke. 
17. Will Olga go with us tomorrow? 
18. While the director was speaking over the phone i waited for him in the entrance hall.