I peaceful countryside noisy cities while my elder sister prefers in the modern cities.

问题补充：

I peaceful countryside noisy cities while my elder sister prefers in the modern cities.

A. would rather; than; living

B. prefer; to; living

C. would rather; than; to live

D. prefer; to; to live

答案：

A. would rather; than; living

B. prefer; to; living

C. would rather; than; to live

(答案→)D. prefer; to; to live

解析：句意：比起喧嚣的城市我更喜欢宁静的乡村，而我姐姐却喜欢生活在现代城市。prefer sth to sth表示选择，两者之间更喜欢前者；prefer do sth to do sth表示选择，两者之间更喜欢做前面的事情；would rather do …than do 表示宁愿做…也不愿做… 两者作比较更愿意做前面提到的事情；故排除AC； 根据句意故选D。