People go out with masks, .
A. fear of swine flu.
B. afraid of swine flu.
C. fearing of the pig flu.
D. being afraid of swine flu..
网友回答
A. fear of swine flu.
(答案→)B. afraid of swine flu.
C. fearing of the pig flu.
D. being afraid of swine flu..
解析：B考查形容词短语作状语的用法。