问题
选择题
_____ weekends we go to school _____ 7 o'clock. [ ]
A. In, at
B. On, at
C. On, in
D. In, on
答案
B
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_____ weekends we go to school _____ 7 o'clock. [ ]
A. In, at
B. On, at
C. On, in
D. In, on
B