26. never watch
27. watched
28. read
29. reads
30. had
31. have
32. haven't seen / saw
33. is ringing.
34. met/ became
35. hasn't drunk
36. ........ she drank whisky .
37. ...............never been to Australia before.
38. ...........met him for a year.
39. ............Mary spoke to me was May last year.
40. Minh has been collecting stamps since 2000.
