问题
选择题
单项选择。
My little cat sleeps ______ the day , but ______ night he begins to work. [ ]
A. at, at
B. on, in
C. on, at
D. during, at
答案
答案：D
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单项选择。
My little cat sleeps ______ the day , but ______ night he begins to work. [ ]
A. at, at
B. on, in
C. on, at
D. during, at
答案：D