问题描述：
A:It's cloudy outside.Please take an umbrella.B:__________.
A.OK,just in case
B.Well,it just depends
C.Yes,take it easy
D.All fight,just in case of
A.OK,just in case
B.Well,it just depends
C.Yes,take it easy
D.All fight,just in case of
问题解答：
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