已经为你订正好了：
Shally ,together with her friends ,is working on the bike at the moment
翻译：此刻,Shally 和她的朋友们在修理那辆自行车.
语法：
work on sth (强调过程)-----解答,处理,修理.
work sth out （强调结果）------解答出,处理完,修好