问题
选择题
—When did it happen?
—At 5:55 a.m. ______ the morning of October 15.[ ]
A. on
B. in
C. at
D. by
答案
A
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—When did it happen?
—At 5:55 a.m. ______ the morning of October 15.[ ]
A. on
B. in
C. at
D. by
A