来自蔡莲红的问题
【用atonin填空______Mid-AutumnDay.______aquartertoten_____the21century______acoldmorning】
用atonin填空______Mid-AutumnDay.______aquartertoten_____the21century______acoldmorning


【用atonin填空______Mid-AutumnDay.______aquartertoten_____the21century______acoldmorning】
用atonin填空______Mid-AutumnDay.______aquartertoten_____the21century______acoldmorning
on__Mid-AutumnDay.具体的某一天用on
____at__aquartertoten几点一律用at
___in__the21century世纪用in
___on___acoldmorning这也是具体的某一天早上,所以要用on以上全是固定搭配,需记住.