问题
选择题
Koalas sleep the day and night they get up and eat leaves. [ ]
A in;in
B. at;in
C. at; at
D. during; at
答案
答案：D
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Koalas sleep the day and night they get up and eat leaves. [ ]
A in;in
B. at;in
C. at; at
D. during; at
答案：D