1. it's 3 months since the windows were deaned
\(\Rightarrow\)the windows.................................
2. it's years since i took photographs
\(\Rightarrow\) i haven't ...................................
3. i last watched TV on new year's day
\(\Rightarrow\) i haven't .............................
1. the windows haven't been cleaned for 3 months
2. i haven't taken photographs for years
3. i haven't watched tv since new years's day