问题
选择题
We often go to school ________ seven ________ the morning. [ ]
A. at; on
B. on ; at
C. at; in
D. in; at
答案
答案：C
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We often go to school ________ seven ________ the morning. [ ]
A. at; on
B. on ; at
C. at; in
D. in; at
答案：C