单项选择题A.He caused a fire on a plane by smoking.B.His flight home was hijacked by terrorists.C.He experienced an accident at 3,000 ft. high.D.His fear of height happened at high altitude.
单项选择题A.It s great but not healthy for body.B.It has helped him reach his extremity.C.It s beyond most racers endurance.D.It s an exploration of body and spirit.