问题
The accident happened ______ a freezing winter morning.[ ]
A: on
B: in
C: at
D:since
B: in
C: at
D:since
正确答案是：
同类题型
Look! A book is on the floor. Whose is it?—It ______be Rick’s. It has his name on it.
Please pour hot water _____ the blender.[ ]
Whose is this blue sweater?—It ___ be Hong Tao’s. His is white.
He slept well_____ the door open. [ ]
Is that the very car you come ______ the other day?-Yes. It’s my father’s Audi A8.[ ]