49. He last paid taxes in 1970. He hasn’t _____________________________________________________ 50. I last ate meat 5 years ago. I haven’t _______________________________________________ 51. It's 3 months since since the windows were cleaned. The windows haven’t _________________________________________ 52. It's years since I took photographs. I haven’t __________________________________________ 53. I last watched TV on new years's day. I haven’t _____________________________________ 54. It's 3 months since he wrote to me. He hasn’t ___________________________________________ 55. The last time I was aboard was in the summer of 1978. I haven’t ______________________________________________ 56. It's ten years since that house was lived in. That house ____________________________________________ 57. I haven't seen him for 2 months. I last ________________________________________________ 58. I haven't been to a concert for over a year. The last time ____________________________