问题
单项选择题
Just last week, for example, the World Health Organization (WHO) announced the disturbing disclosure that SARS may be pretty deadlier than previously believed.
A．very
B．far
C．especially
D．none
答案
参考答案：B
解析：副词应用。用来修饰比较级结构的表示程度的副词只能用far，意为“……多”。