answers

1. had already visited   2. thought  3. would go  4. to see  5. was doing   6. it had been snowing 
7. expected  8. to find  9. warming  10. saw  11. was  12. looked  13. was not   14 shall I do
15. will go  16. is  17. will put  18. will go 19. will see  20. will sing  21. hurried  22. opened
23. saw 24. sitting  25. had been sitting/had sat 26. stand  27. wondering  28. was  29. thought
30. were  31 are  32. have been sitting  33. looked  34. had stopped  35. are  36. put 37. will go out  
38. will sing  39 are   40. explained  41. showed ( was showing)  42 set