1, the SAT is sponsored by the American College Board, and its achievements are an important reference for high school students from all over the world to apply for admission qualifications and scholarships in American universities. Both it and ACT are called American College Entrance Examination.

2. TOEFL is an English proficiency test organized by educational testing service (ETS). Its full name is "English proficiency test for non-native English speakers" and its Chinese transliteration is "TOEFL".

3.SAT examines students' logical reasoning ability, which is not only a hard condition for entering undergraduate colleges, but also a standard for American society to measure whether a person is "smart". And all these need to be based on language communication. First of all, you must speak English.

TOEFL is an English proficiency test for students from non-English-speaking countries who apply to go to universities/graduate schools in the United States/Canada and other countries.