问题补充：
It is very cold in the northeast of China winter.
A. at
B. in
C. for
D. till
答案：
A. at
(答案→)B. in
C. for
D. till
解析：在四季前面都是用介词in.
时间：2024-01-16 22:17:16
It is very cold in the northeast of China winter.
A. at
B. in
C. for
D. till
A. at
(答案→)B. in
C. for
D. till
解析：在四季前面都是用介词in.
