37. It's ten weeks since since I last had a good night sleep.  I haven’t _________________________________________________________ 38. He last paid taxes in 1970.  He hasn’t _________________________________________________________ 39. I last ate meat 5 years ago.  I haven’t _________________________________________________________ 40. It's 3 months since since the windows were cleaned.  The windows haven’t _______________________________________________ 41. It's years since I took photographs.  I haven’t _________________________________________________________ 42. I last watched TV on new years's day.  I haven’t _________________________________________________________