国家开放大学 / 人文英语1
The Mid-Autumn Festival falls on the fifteenth day of the eighth lunar month. It is the time when the moon is said to be _ _ _ _ _ _ _ _ _ _ _ _ its brightest and fullest.
A. at
B. in
C. on
A. at
B. in
C. on
参考答案：
佳题速递：