问题
The car accident happened ____ a cold winter morning. Luckily, no one was hurt.
A:in
B:on
C:at
D:of
B:on
C:at
D:of
正确答案是：
同类题型
I’ll vote ________ Mary because she always helps people _______ need.[ ]
Listen！Helen is singing in the next room.—It _____be Helen .She has gone to Beijing.
______do you sleep every night? —Six to eight hours. [ ]
My father has worked there ___________.
The accident happened ______ a cold winter early morning.[ ]