Don't speak out of turn. 还没轮到你说话。
Please wait in line. 请按秩序排成一队。
You're next. 轮到你了。 You have to wait your turn. 还没轮到你呢。
Are you waiting in line? 你在排队吗? I was here before you. 我比你早来。
You're after me, pal. 老兄,你排在我后面。
You're on. 轮到你上场了。 Don't put the cart before the horse. 不要本末倒置。
The best is yet to come. 好戏还在后头。