It takes us about __________to fly to that city A.one half and half B.half and one hoursC.one and a half hoursD.one and a half hours
问题描述：
It takes us about __________to fly to that city A.one half and half B.half and one hours
C.one and a half hours
D.one and a half hours
答
CD有区别么.就选这个.