问题补充：
The Chinese government will keep updating information about H7N9 bird flu in a transparent manner, and public concerns in a timely manner.
A. subscribe to
B. respond to
C. contribute to
D. adjust to
答案：
A. subscribe to
(答案→)B. respond to
C. contribute to
D. adjust to
解析：考查动词短语辨析：A. subscribe to同意，订阅，B. respond to回应，答复，C. contribute to对…做出贡献，D. adjust to 调整，适应，句意：中国政府会以透明的方式保持更新H7N9的信息，及时回应公共的关心。选B。
