题干
I usually get up ______ 7:30 a.m.______ Sundays. I'm very happy.
A：at; in
B：in; on
C：at; on
答案(点此获取答案解析）
C
I usually get up ______ 7:30 a.m.______ Sundays. I'm very happy.
A：at; in
B：in; on
C：at; on
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时,
. 若
, 
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