After three months these young students finally became used to the of life in a big city

问题补充：

After three months, these young students finally became used to the of life in a big city abroad.

A. speed

B. pace

C. rate

D. frequency

答案：

A. speed

(答案→)B. pace

C. rate

D. frequency

解析： pace “节奏”；A.“速度”；C.“比率”；D.“频率”。