问题
选择题
We usually go to school _____________ six ____________ the morning. [ ]
A. in, at
B. at, in
C. by, in
D. for, in
答案
答案：B
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We usually go to school _____________ six ____________ the morning. [ ]
A. in, at
B. at, in
C. by, in
D. for, in
答案：B