who have access to their own cars,have risen sharply in the recent years.who have access to their own cars,( have risen) sharply in the recent years.  同时,拥有私人轿车的人数这几年却在快速增加.为什么用have risen 而不用 rising 等.

问题描述:

who have access to their own cars,have risen sharply in the recent years.
who have access to their own cars,( have risen) sharply in the recent years.
  同时,拥有私人轿车的人数这几年却在快速增加.
为什么用
have risen 而不用 rising 等.