My older sister was then a senior in high school, and Dad asked if she and I could go to school on alternate days.
وَٱتَّبَعْنَا هٰذَا ٱلْبَرْنَامَجَ حَتَّى تَخَرَّجَتْ أُخْتِي ٱلَّتِي كَانَتْ فِي سَنَتِهَا ٱلْأَخِيرَةِ .‏