问题
选择题
__about 3:00am____July 28,1976,some people saw bright lights in the sky.
A．at; in
B．in ;at
C．at ; on
D．in ; of
答案
答案：C
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__about 3:00am____July 28,1976,some people saw bright lights in the sky.
A．at; in
B．in ;at
C．at ; on
D．in ; of
答案：C