First, you need language scores required by universities in other countries to apply for universities in other countries. Of course, if you already have a green card or have emigrated, this is another one. For example, to apply for a British university, as an international student, you still need IELTS scores (or TOEFL scores, because many British universities recognize TOEFL scores).

Second, take standardized tests. Just like the sat in the United States, different countries have different standardized tests. This requirement varies from continent to continent, which is the so-called national college entrance examination. The result of this exam is very important. Although undergraduate admissions officers will attach great importance to all aspects of your students' abilities, this standardized examination may be the first step in screening people.

Third, I suggest you go to the UK or Canada to study at a university. I go to college in America, and many of my friends go to school in England. I almost applied to an English school. I feel that Britain and Canada have higher recognition of your study in the United States, and the quality of education in these two countries is good.

Fourth, other additional application materials depend on specific requirements, but language scores (standardized tests) and resumes are essential.

Fifth, see if you have any college courses with other countries in high schools in the United States. If so, go to other countries as soon as possible. First of all, you can learn about the learning process in other countries. Second, it is very beneficial for you to apply for this foreign university.