— I heard they went skiing in the mountains last winter.
— It true because there was little snow there.
A. may not be
B. won’t be
C. couldn’t be
D. will be
网友回答
A. may not be
B. won’t be
(答案→)C. couldn’t be
D. will be
解析：句意：我听说他们去年冬天去山里滑雪了。不可能是真的，因为那几乎没有雪。所以选C，couldn’t be不可能是……。