—How long do you think the terrible snow will ?
—Sorry, I didn’t listen to the weather forecast.
A. keep out
B. keep on
C. keep up
D. keep away
网友回答
A. keep out
B. keep on
(答案→)C. keep up
D. keep away
解析：考查词组辨析：A. keep out不准入内B. keep on反复C. keep up 维持，不低落，D. keep away远离，句意：--你认为恐怕的雪会持续到什么时候？--对不起，我没有听天气预报。选C。