英语短文改错,共十处,More people today begin to understand if study do

更正在括号处标明,共十处错误!
More people today begin to understand (that 或 去掉if) study does not end with a school graduation.(Education) is not just a college degree; it is life (itself).Many people are not (interested) in studying at a college.They like (other) kinds of learning.They may attend (去掉to) a training class in their own field (or) take classes on the Internet.They may improve their work skills by (following) TV courses.They (certainly) know that if they know more or learn more,they can get better jobs and earn (加入more) money.