--- And then the wind blew the roof off.
--- Oh, you must have been .
A. frightened, frightened
B. frightening, frightened
C. frightened, frightening
D. frightening, frightening
网友回答
A. frightened, frightened
(答案→)B. frightening, frightened
C. frightened, frightening
D. frightening, frightening
解析：词义辨析。Frightened人感到害怕的；frightening令人害怕的，可怕的。句意：然后可怕的风把屋顶吹跑了。哦，你肯定感到很害怕。所以选B。