Going to the United States for undergraduate studies generally requires TOEFL, SAT 1 and 2, and usual grades. More than 50 college students are generally exempt from SAT scores, even the worst TOEFL. They want you to go to a language school to earn money.
As for the hard test, it's actually not difficult to test, depending on where you want to go. It is naturally difficult to get into the TOP (think of those who want to get into Tsinghua Peking University in the college entrance examination). If you don't do well in the exam, you may not have to take it.
Studying in the United States for four years, the general tuition fee of private schools is 40 thousand dollars, plus living expenses 1.5 thousand, which is more than 300 thousand a year. Public schools are relatively cheap, the general tuition fee is about 25,000, and the living expenses are about 1 10,000, which is more than 200,000 a year. If there is a scholarship, there is almost no top. The lower the school ranking, the easier it is to get money. A few top universities will provide scholarships to international students without affecting their admission (but if you want money like Stanford, unless your wife is too good, you will commit suicide).
There are many good universities in America. Basically, the top 30 are well-known universities, the top 50 are good, and the top 100 is not bad. In addition, some liberal arts colleges are very elite, and the competition rate is no less than Harvard and Yale.
Then, be careful not to patronize the study, and extracurricular activities are also very important. American elite schools should train qualified talents, not nerds.
If you have any questions, please contact me. I hope I can help more students study successfully!