---I usually watch TV till 11 o’clock in th

问题补充：

---IusuallywatchTVtill11o’clockintheevening.---Really?Areyou______?A.allowed to stay upB.allow to stay upC.allowing staying upD.allowed stay up

答案：

A解析A 考查被动语态。“你被允许熬夜吗?”允许某人做某事：allow sb. to do sth.，被动语态为：Sb. be allowed to do sth.故选A。