a cold morning, I opened the window and found that it was snowing outside. [ ] A
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![a cold morning, I opened the window and found that it was snowing outside. [ ] A](/pic/43_858756.jpg)
________ a cold morning, I opened the window and found that it was snowing outside.
[]A.By
B.In
C.For
D.On
试题答案
答案:D
![a cold morning, I opened the window and found that it was snowing outside. [ ] A](/pic/43_858756.jpg)
________ a cold morning, I opened the window and found that it was snowing outside.
[]A.By
B.In
C.For
D.On
答案:D