SAT is one of the main courses in the United States, which was offered earlier.

SAT, the exam for studying abroad, requires a certain English foundation, such as TOEFL, before you can start studying.

There were not many English training centers in earlier years, but now there are many.

You can compare a few more,

For example, know the address of the institution, curriculum arrangement and faculty in advance.

A better way is to experience it at home.