问题
单项选择题
Just last week, for example, the World Health Organization (WHO) announced the disturbing disclosure that chick flu may be pretty deadlier than previously believed.
A．very
B．far
C．especially
D．none
答案
参考答案：B
解析：[分析]副词应用 用来修饰比较级的副词应用far，much等，而very，especially只能修饰原级；因此答案为B。
