There is a 20 minute parking here so we must get back to the car very quickly.A. freedom

问题补充：

There is a 20 minute parking here, so we must get back to the car very quickly.

A. freedom

B. limit

C. allowance

D. prohibition

答案：

A. freedom

(答案→)B. limit

C. allowance

D. prohibition

解析：parking limit 意为在停车场“停车的时间限制”。a 20 minutes parking limit (停车时间限制为20分钟).