问题
选择题
I usually go to school_______ seven_______ the morning. [ ]
A. at; on
B. at; in
C. at; at
D. on; on
答案
答案：B
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I usually go to school_______ seven_______ the morning. [ ]
A. at; on
B. at; in
C. at; at
D. on; on
答案：B