We should take good care of the elderly as they are to the sudden change of weather.A. s

问题补充：

We should take good care of the elderly, as they are to the sudden change of weather.

A. sensitive

B. anxious

C. weak

D. positive

答案：

(答案→)A. sensitive

B. anxious

C. weak

D. positive

解析：

试题分析:考查形容词辨析。A敏感的；B焦虑的；C虚弱的；D积极的。从语义判断老人应该是对突变的天气敏感，而且只有sensitive和to搭配，意思为“对。。。敏感的”句意：我们应该好好照顾老年人，因为他们对于突然的天气变化很敏感。