thought everything改成think everything
coming to the US 改成come前面用的就是give
if they are wrong or right改成whether they are wrong or right
perfect educations 把s去掉,教育是抽象名词,没有复数
a lot better than改成much better than
is hell for you改成is a hell for you
but older people 改成old people就可以
以上是我的建议.