问题补充：
—Its cloudy outside. Please take an umbrella. — .
A. Yes， take it easy
B. Well， it just depends
C. OK， just in case
D. All right， you e welcome
答案：
A. Yes， take it easy
B. Well， it just depends
(答案→)C. OK， just in case
D. All right， you e welcome
解析：好的，以防万一。
