问题
选择题
The students can't go out ________ school nights, but they can ________ Saturdays and Sundays. [ ]
A. in; in
B. on; on.
C. in; on
D. on; in
答案
答案:B
The students can't go out ________ school nights, but they can ________ Saturdays and Sundays. [ ]
A. in; in
B. on; on.
C. in; on
D. on; in
答案:B