It is said the happiest person in the world and those who makes others happy.这句话哪里错了?

问题描述:

It is said the happiest person in the world and those who makes others happy.这句话哪里错了?

我认为是
It is said that the happiest people in the world are those who makes others happy.
原句单复数有问题,and应是are,这是你打错了把